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Tie SJ, Fan ML, Zhang JY, Yu J, Wu N, Su GQ, Xu Z, Huang WF. Clinical outcomes after endoscopic resection and the risk of lymph node metastasis in rectal neuroendocrine tumors: a single-center retrospective study. Surg Endosc 2024; 38:5178-5186. [PMID: 39043886 DOI: 10.1007/s00464-024-11088-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Accepted: 07/14/2024] [Indexed: 07/25/2024]
Abstract
BACKGROUND AND AIM The incidence of rectal neuroendocrine tumors (R-NETs) has increased in recent years. However, the predictors of lymph node (LN) metastasis and clinical outcomes, particularly following endoscopic treatment, remain unclear. Our study aims to elucidate the potential risk factors for LN metastasis and the clinical outcomes of patients undergoing endoscopic resection in R-NETs. METHODS A total of 128 patients with R-NETs were retrospectively identified from a single center between June 2012 and December 2021. Risk factors for LN metastasis in R-NETs were analyzed using multivariate analysis. Additionally, the clinical outcomes of endoscopic resections in patients with R-NETs were assessed. RESULTS In our study, 128 patients with R-NETs were retrospectively analyzed. The risk factors for LN metastasis determined by multivariate analysis were tumor size and patient age at diagnosis. Among the 111 patients treated with endoscopic resection and with tumor margin records available, 92 underwent endoscopic submucosal dissection (ESD) and 19 underwent conventional endoscopic mucosal resection (EMR). There was no significant difference between the two groups regarding the positive rates of basal tumor margin and lateral tumor margin. Furthermore, 64 patients who underwent endoscopic resection for R-NETs were successfully followed up (range, 1.64-76.71 months), during which only one patient developed local recurrence. CONCLUSION Tumor size and age at diagnosis were predictors for LN metastasis of R-NETs. Both ESD and EMR are alternative techniques with a favorable prognosis for R-NETs, even in cases with positive resection margins. However, due to the relatively small number of patients undergoing EMR and missing data in follow-up protocols, definitive conclusions require further large-scale studies.
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Affiliation(s)
- Sheng-Jiao Tie
- Department of Gastroenterology and Hepatology, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Mei-Ling Fan
- Department of Gastroenterology, The Third Hospital of Xiamen, Xiamen, China
| | - Jin-Yan Zhang
- Department of Gastroenterology and Hepatology, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
- The School of Clinical Medicine, Fujian Medical University, Fuzhou, China
| | - Juan Yu
- Department of Gastroenterology and Hepatology, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Na Wu
- Department of Gastroenterology and Hepatology, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Guo-Qiang Su
- Department of Colorectal Cancer Surgery, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Zhong Xu
- Department of Gastroenterology and Hepatology, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China.
| | - Wei-Feng Huang
- Department of Gastroenterology and Hepatology, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China.
- The School of Clinical Medicine, Fujian Medical University, Fuzhou, China.
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Ito S, Hotta K, Sekiguchi M, Takeuchi Y, Oka S, Yamamoto H, Shinmura K, Harada K, Uraoka T, Hisabe T, Sano Y, Kondo H, Horimatsu T, Kikuchi H, Kawamura T, Nagata S, Yamamoto K, Tajika M, Tsuji S, Kusaka T, Okuyama Y, Yoshida N, Moriyama T, Hasebe A, So S, Saito Y, Nakahira H, Ishikawa H, Matsuda T. Short-term outcomes of endoscopic resection for colorectal neuroendocrine tumors: Japanese multicenter prospective C-NET STUDY. Dig Endosc 2024; 36:942-951. [PMID: 37986226 DOI: 10.1111/den.14728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Accepted: 11/19/2023] [Indexed: 11/22/2023]
Abstract
OBJECTIVES The incidence of colorectal neuroendocrine tumors (NETs) has increased with colorectal cancer screening programs and increased colonoscopies. The management of colorectal NETs has recently shifted from radical surgery to endoscopic resection. We aimed to evaluate the short-term outcomes of various methods of endoscopic resection for colorectal NETs. METHODS Among those registered in the C-NET STUDY, patients with colorectal NETs who underwent endoscopic treatment as the initial therapy were included. Short-term outcomes, such as the en bloc resection rate and R0 resection (en bloc resection with tumor-free margin) rate, were analyzed based on treatment modalities. RESULTS A total of 472 patients with 477 colorectal NETs received endoscopic treatment. Of these, 418 patients with 421 lesions who met the eligibility criteria were included in the analysis. The median age of the patients was 55 years, and 56.9% of them were men. The lower rectum was the most commonly affected site (88.6%), and lesions <10 mm accounted for 87% of the cases. Endoscopic submucosal resection with a ligation device (ESMR-L, 56.5%) was the most common method, followed by endoscopic submucosal dissection (ESD, 31.4%) and endoscopic mucosal resection using a cap (EMR-C, 8.5%). R0 resection rates <10 mm were 95.5%, 94.8%, and 94.3% for ESMR-L, ESD, and EMR-C, respectively. All 16 (3.8%) patients who developed treatment-related complications could be treated conservatively. Overall, 23 (5.5%) patients had incomplete resection without independent clinicopathological risk factors. CONCLUSION ESMR-L, ESD, and EMR-C were equally effective and safe for colorectal NETs with a diameter <10 mm.
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Affiliation(s)
- Sayo Ito
- Division of Endoscopy, Shizuoka Cancer Center, Shizuoka, Japan
| | - Kinichi Hotta
- Division of Endoscopy, Shizuoka Cancer Center, Shizuoka, Japan
| | - Masau Sekiguchi
- Endoscopy Division, Cancer Screening Center, National Cancer Center Hospital, Tokyo, Japan
| | - Yoji Takeuchi
- Department of Gastrointestinal Oncology, Osaka International Cancer Institute, Osaka, Japan
| | - Shiro Oka
- Department of Gastroenterology, Hiroshima University Hospital, Hiroshima, Japan
| | - Hironori Yamamoto
- Division of Gastroenterology, Department of Medicine, Jichi Medical University, Tochigi, Japan
| | - Kensuke Shinmura
- Department of Gastroenterology and Endoscopy, National Cancer Center Hospital East, Chiba, Japan
| | - Keita Harada
- Department of Gastroenterology and Hepatology, Okayama University Hospital, Okayama, Japan
| | - Toshio Uraoka
- Department of Gastroenterology and Hepatology, Gunma University Graduate School of Medicine, Gunma, Japan
| | - Takashi Hisabe
- Department of Gastroenterology, Fukuoka University Chikushi Hospital, Fukuoka, Japan
| | - Yasushi Sano
- Gastrointestinal Center, Sano Hospital, Hyogo, Japan
| | - Hitoshi Kondo
- Department of Gastroenterology, Tonan Hospital, Hokkaido, Japan
| | - Takahiro Horimatsu
- Institute for Advancement of Clinical and Translational Science, Kyoto University Hospital, Kyoto, Japan
| | - Hidezumi Kikuchi
- Department of Gastroenterology and Hepatology, Hirosaki University Graduate School of Medicine, Aomori, Japan
| | - Takuji Kawamura
- Department of Gastroenterology, Kyoto Second Red Cross Hospital, Kyoto, Japan
| | - Shinji Nagata
- Department of Gastroenterology, Hiroshima City North Medical Center Asa Citizens Hospital, Hiroshima, Japan
| | - Katsumi Yamamoto
- Department of Gastroenterology, JCHO Osaka Hospital, Osaka, Japan
| | - Masahiro Tajika
- Department of Endoscopy, Aichi Cancer Center Hospital, Aichi, Japan
| | - Shigetsugu Tsuji
- Department of Gastroenterology, Ishikawa Prefectural Central Hospital, Ishikawa, Japan
| | - Toshihiro Kusaka
- Department of Gastroenterology and Hepatology, Kyoto Katsura Hospital, Kyoto, Japan
| | - Yusuke Okuyama
- Department of Gastroenterology, Kyoto First Red Cross Hospital, Kyoto, Japan
| | - Naohisa Yoshida
- Department of Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Tomohiko Moriyama
- International Medical Department, Kyushu University Hospital, Fukuoka, Japan
| | - Aki Hasebe
- Department of Gastroenterology, Shikoku Cancer Center, Ehime, Japan
| | - Suketo So
- Department of Gastroenterology, Tobata Kyoritsu Hospital, Fukuoka, Japan
| | - Yutaka Saito
- Endoscopy Division, National Cancer Center Hospital, Tokyo, Japan
| | - Hiroko Nakahira
- Department of Gastrointestinal Oncology, Osaka International Cancer Institute, Osaka, Japan
| | - Hideki Ishikawa
- Department of Molecular-Targeting Prevention, Graduate School of Medicine Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Takahisa Matsuda
- Division of Gastroenterology and Hepatology, Toho University Omori Medical Center, Tokyo, Japan
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Kim SJ, Lee J, Kim GW, Kim SY. The role of endoscopic ultrasonography for diagnosis of residual rectal neuroendocrine tumor. Surg Endosc 2024:10.1007/s00464-024-10963-z. [PMID: 38866946 DOI: 10.1007/s00464-024-10963-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Accepted: 05/25/2024] [Indexed: 06/14/2024]
Abstract
BACKGROUND Endoscopic ultrasonography (EUS) is useful for assessing the depth and regional lymph node involvement in rectal neuroendocrine tumors (NETs). However, evidence regarding the effectiveness of EUS in identifying residual lesions in patients with incompletely resected NET is limited. We aimed to evaluate the efficacy of EUS in identifying residual rectal NETs and the clinical outcomes of salvage endoscopic treatment. METHODS We retrospectively reviewed the records of patients who were transferred to Chosun University Hospital and received salvage treatment for incompletely resected rectal NETs between January 2012 and October 2021. RESULTS This study included 68 incompletely resected rectal NET, of which 59 were margin-positive and 9 were margin-indeterminate. EUS detection (odds ratio (OR), 8.44; 95% confidence interval (CI), 1.18-41.35) and visual detection (OR, 7.00; 95% CI, 1.50-47.48) were associated with residual lesion in patients with incompletely resected NET. EUS detection of residual lesions showed a sensitivity of 94%, specificity of 71%, positive predictive value of 88%, negative predictive value of 83%, and accuracy of 87%. All patients underwent salvage treatment with band-ligation endoscopic mucosal resection (58.8%) and endoscopic submucosal dissection (41.2%). Residual NETs were diagnosed in 47 of 68 patients (69.1%), and no recurrence was noted during the follow-up period of 51.8 ± 22.9 months. CONCLUSIONS EUS is a more sensitive method than visual detection for evaluating residual rectal NETs. Salvage endoscopic treatment for incompletely resected NETs is safe and effective.
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Affiliation(s)
- Seong-Jung Kim
- Department of Internal Medicine, College of Medicine, Chosun University 309, Pilmun-Daero, Dong-Gu, Gwangju, 61452, Republic of Korea
| | - Jun Lee
- Department of Internal Medicine, College of Medicine, Chosun University 309, Pilmun-Daero, Dong-Gu, Gwangju, 61452, Republic of Korea.
| | - Gang-Woo Kim
- Department of Internal Medicine, College of Medicine, Chosun University 309, Pilmun-Daero, Dong-Gu, Gwangju, 61452, Republic of Korea
| | - So Yeong Kim
- Department of Preventive Medicine, College of Medicine, Chosun University, Gwangju, Republic of Korea
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Sekiguchi M, Matsuda T, Saito Y. Treatment strategy and post-treatment management of colorectal neuroendocrine tumor. DEN OPEN 2024; 4:e254. [PMID: 37313123 PMCID: PMC10258557 DOI: 10.1002/deo2.254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Revised: 05/19/2023] [Accepted: 05/29/2023] [Indexed: 06/15/2023]
Abstract
Following the increase in colorectal neuroendocrine tumors (NETs), there is a consequent increase in the importance of their appropriate treatment and post-treatment management. It is widely accepted that colorectal NETs sized ≥20 mm and those with muscularis propria invasion are indicated for radical surgery, and those sized <10 mm without the invasion are indicated for local resection. No consensus has been reached regarding the treatment strategy for those sized 10-19 mm without the invasion. Endoscopic resection has become a primary option for the local resection of colorectal NETs. For rectal NETs sized <10 mm, modified endoscopic mucosal resection, such as endoscopic submucosal resection with ligation device and endoscopic mucosal resection with a cap-fitted panendoscope, seems favorable because of its ability to achieve a high R0 resection rate, safety, and convenience. Endoscopic submucosal dissection can also be helpful for these lesions; however, this procedure may be more effective for large lesions or those in the colon. Management following local resection of colorectal NETs is based on the pathological evaluation of factors associated with metastasis, including tumor size, invasion depth, tumor cell proliferative activity (NET grading), presence of lymphovascular invasion, and resection margins. There remain unclear issues in managing cases with NET grading ≥2, positive lymphovascular invasion, and positive resection margins following local resection. In particular, there is confusion regarding managing positive lymphovascular invasion because positivity has become remarkably high with the increased use of the immunohistochemical/special staining. Further evidence based on long-term clinical outcomes is required to address these issues.
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Affiliation(s)
- Masau Sekiguchi
- Cancer Screening CenterNational Cancer Center HospitalTokyoJapan
- Endoscopy DivisionNational Cancer Center HospitalTokyoJapan
- Division of Screening TechnologyNational Cancer Center Institute for Cancer ControlTokyoJapan
| | - Takahisa Matsuda
- Division of Gastroenterology and HepatologyToho University Omori Medical CenterTokyoJapan
| | - Yutaka Saito
- Endoscopy DivisionNational Cancer Center HospitalTokyoJapan
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5
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Wu X, Peng C, Lin M, Li Z, Yang X, Liu J, Yang X, Zuo X. Risk of metastasis and survival in patients undergoing different treatment strategies with T1 colonic neuroendocrine tumors. J Endocrinol Invest 2024; 47:671-681. [PMID: 37653287 DOI: 10.1007/s40618-023-02185-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Accepted: 08/24/2023] [Indexed: 09/02/2023]
Abstract
PURPOSE The efficacy and safety of local excision (LE) for small (< 1‒2 cm) colonic neuroendocrine tumors (NETs) is controversial due to the higher metastasis risk when compared with rectal NETs. The study aimed to evaluate the metastasis risk of T1 colonic NETs and compare patients' long-term prognosis after LE or radical surgery (RS). METHODS The Surveillance Epidemiology and End Results database was used to identify patients with T1 colonic NETs (2004‒2015). Multivariable logistic regression was performed to assess factors associated with metastasis risk. Propensity score matching was used to balance the variables. Cancer-specific survival (CSS) and overall survival (OS) were calculated to estimate the prognosis of patients with T1N0M0 colonic NETs who underwent LE or RS. RESULTS Of the 610 patients with colonic NETs, 46 (7.54%) had metastasis at diagnosis. Tumor size (11-20 mm) (OR = 9.51; 95% confidence interval (CI): 4.32‒21.45; P < 0.001), right colon (OR = 15.79; 95% CI 7.20‒38.56; P < 0.001), submucosal infiltration (OR = 2.08; 95% CI 0.84‒5.57; P = 0.125) were independent risk factors associated with metastasis. Of the 515 patients with T1N0M0 colonic NETs, the overall long-term prognosis of LE was as good as that of RS groups (after matching, 5-year CSS: 97.9% vs. 94.6%, P = 0.450; 5-year OS: 92.7% vs. 85.6%, P = 0.009). CONCLUSION Tumor size (11‒20 mm) and site (right colon) are associated with metastasis in T1 colonic NETs. In the absence of metastasis, LE could be a viable option for 0‒10 mm T1 colonic NETs with well/moderate differentiation in the left colon in terms of long-term survival.
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Affiliation(s)
- X Wu
- Department of Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China
| | - C Peng
- Department of Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China
| | - M Lin
- Department of Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China
| | - Z Li
- Department of Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China
- Laboratory of Translational Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - X Yang
- Department of Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China
- Laboratory of Translational Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Clinical Epidemiology Unit, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - J Liu
- Department of Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China
| | - X Yang
- Department of Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China
- Laboratory of Translational Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - X Zuo
- Department of Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China.
- Laboratory of Translational Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.
- Robot engineering laboratory for precise diagnosis and therapy of GI tumor, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.
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Cheminel L, Lupu A, Wallenhorst T, Lepilliez V, Leblanc S, Albouys J, Abou Ali E, Barret M, Lorenzo D, De Mestier L, Burtin P, Girot P, Le Baleur Y, Gerard R, Yzet C, Tchirikhtchian K, Degand T, Culetto A, Lemmers A, Schaefer M, Chevaux JB, Zhong P, Hervieu V, Subtil F, Rivory J, Fine C, Jacques J, Walter T, Pioche M. Systematic Resection of the Visible Scar After Incomplete Endoscopic Resection of Rectal Neuroendocrine Tumors. Am J Gastroenterol 2024; 119:378-381. [PMID: 37734341 DOI: 10.14309/ajg.0000000000002516] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 09/06/2023] [Indexed: 09/23/2023]
Abstract
INTRODUCTION When initial resection of rectal neuroendocrine tumors (r-NETs) is not R0, persistence of local residue could lead to disease recurrence. This study aimed to evaluate the interest of systematic resection of non-R0 r-NET scars. METHODS Retrospective analysis of all the consecutive endoscopic revisions and resections of the scar after non-R0 resections of r-NETs. RESULTS A total of 100 patients were included. Salvage endoscopic procedure using endoscopic submucosal dissection or endoscopic full-thickness resection showed an R0 rate of near 100%. Residual r-NET was found in 43% of cases. DISCUSSION In case of non-R0 resected r-NET, systematic scar resection by endoscopic full-thickness resection or endoscopic submucosal dissection seems necessary.
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Affiliation(s)
- Loïc Cheminel
- Endoscopy and Gastroenterology Unit, Pavillon L, Edouard Herriot Hospital, Hospices Civils de Lyon, Lyon, France
| | - Alexandru Lupu
- Endoscopy and Gastroenterology Unit, Pavillon L, Edouard Herriot Hospital, Hospices Civils de Lyon, Lyon, France
| | - Timothée Wallenhorst
- Department of Endoscopy and Gastroenterology, Pontchaillou Hospital, Rennes University Hospital, Rennes, France
| | - Vincent Lepilliez
- Department of Endoscopy and Gastroenterology, Jean Mermoz Private Hospital, Ramsay Santé, Lyon, France
| | - Sarah Leblanc
- Department of Endoscopy and Gastroenterology, Jean Mermoz Private Hospital, Ramsay Santé, Lyon, France
| | - Jérémie Albouys
- Department of Endoscopy and Gastroenterology, Dupuytren University Hospital, Limoges, France
| | - Einas Abou Ali
- Department of Endoscopy and Gastroenterology, Cochin Hospital, APHP, Paris, France
| | - Maximilien Barret
- Department of Endoscopy and Gastroenterology, Cochin Hospital, APHP, Paris, France
| | - Diane Lorenzo
- Department of Endoscopy and Gastroenterology, Beaujon Hospital, APHP, Paris, France
| | - Louis De Mestier
- Department of Endoscopy and Gastroenterology, Beaujon Hospital, APHP, Paris, France
| | - Pascal Burtin
- Digestive Endoscopy Unit, Gustave Roussy Oncology Institute, Villejuif, France
| | - Paul Girot
- Department of Oncology, Loire Vendée Océan Hospital, La Roche sur Yon, France
| | - Yann Le Baleur
- Digestive Endoscopy Unit, Department of Gastroenterology, Paris Saint-joseph Hospital, Paris, France
| | - Romain Gerard
- Department of Digestive Diseases, Claude Huriez Hospital, Lille University Hospital, Lille, France
| | - Clara Yzet
- Endoscopy and Gastroenterology Unit, Pavillon L, Edouard Herriot Hospital, Hospices Civils de Lyon, Lyon, France
| | | | - Thibault Degand
- Department of Endoscopy and Gastroenterology, Dijon University Hospital, Dijon, France
| | - Adrian Culetto
- Department of Gastroenterology and Pancreatology, Rangueil University Hospital, Toulouse, France
| | - Arnaud Lemmers
- Department of Gastroenterology, Hepatopancreatology and Digestive Oncology, CUB Erasme Hospital, Brussels, Belgium
| | - Marion Schaefer
- Endoscopy and Gastroenterology Unit, Brabois Hospitals, Nancy, France
| | | | - Peng Zhong
- Department of Endoscopy and Gastroenterology, Besançon Regional University Hospital, Besançon, France
| | | | - Fabien Subtil
- Service de Biostatistique, Hospices Civils de Lyon, Lyon, France
- Université de Lyon, Université Lyon 1, CNRS, Laboratoire de Biométrie et Biologie Évolutive UMR 5558, Villeurbanne, France
| | - Jérôme Rivory
- Endoscopy and Gastroenterology Unit, Pavillon L, Edouard Herriot Hospital, Hospices Civils de Lyon, Lyon, France
| | - Caroline Fine
- Department of Endoscopy and Gastroenterology, Croix-Rousse Hospital, Hospices Civils de Lyon, Lyon, France ; and
| | - Jérémie Jacques
- Department of Endoscopy and Gastroenterology, Dupuytren University Hospital, Limoges, France
| | - Thomas Walter
- Department of Medical Oncology, Pavillon E, Edouard Herriot Hospital, Hospices Civils de Lyon, Lyon, France
| | - Mathieu Pioche
- Endoscopy and Gastroenterology Unit, Pavillon L, Edouard Herriot Hospital, Hospices Civils de Lyon, Lyon, France
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Jiang XT, Hu Y, Gong J, Guo SB. Clinical Value of Clip-and-Snare Assisted Endoscopic Submucosal Resection in Treatment of Rectal Neuroendocrine Tumors. Visc Med 2023; 39:140-147. [PMID: 37899795 PMCID: PMC10601530 DOI: 10.1159/000533393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Accepted: 07/31/2023] [Indexed: 10/31/2023] Open
Abstract
Introduction The aim of the study was to introduce a new endoscopic technology, clip-and-snare assisted endoscopic submucosal resection (CS-ESMR), for treatment of rectal neuroendocrine tumors (NETs) and then to investigate the therapeutic value of CS-ESMR. Methods In this retrospective study, 67 patients who underwent endoscopic treatment of rectal NETs from March 2017 to December 2021 were analyzed. According to the endoscopic resection methods (endoscopic mucosal resection [EMR], CS-ESMR, and endoscopic submucosal dissection [ESD]), the cases were divided into CS-ESMR group (27 cases), ESD group (31 cases), and EMR group (9 cases). The pathological R0 resection rate and the incidence of adverse events (bleeding and perforation) were compared among the three groups. Results There was a significant difference about the pathological R0 resection between the CS-ESMR group and the EMR group and between the CS-ESMR group and the ESD group (both p < 0.05). Compared with ESD group, the procedure time, intraoperative bleeding, and the cost of CS-ESMR group are significantly decreased (p < 0.001, p < 0.05, p < 0.001, respectively). Conclusion CS-ESMR may be a safe and effective treatment for rectal NETs with a diameter of less than 10 mm, without muscularis propria invasion and metastasis.
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Affiliation(s)
- Xin-Tong Jiang
- Department of Gastroenterology, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Yang Hu
- Department of Gastroenterology, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Jian Gong
- Department of Gastroenterology, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Shi-Bin Guo
- Department of Gastroenterology, The First Affiliated Hospital of Dalian Medical University, Dalian, China
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8
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Wang N, Shu L, Liu S, Yang L, Bai T, Shi Z, Liu X. Comparing endoscopic mucosal resection with endoscopic submucosal dissection in colorectal adenoma and tumors: Meta-analysis and system review. PLoS One 2023; 18:e0291916. [PMID: 37768914 PMCID: PMC10538725 DOI: 10.1371/journal.pone.0291916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 08/07/2023] [Indexed: 09/30/2023] Open
Abstract
AIMS This study aimed to evaluate the safety, efficacy, and long-term outcomes of endoscopic mucosal resection (EMR) and endoscopic submucosal dissection (ESD) for treating colorectal adenomas and tumors. METHODS A systematic literature review was conducted using databases including PubMed, Web of Science, and Embase. Parameters such as number of patients or lesions, histological diagnosis, lesion size, surgery time, en-bloc resection, R0 resection, severe postoperative complications, and local recurrence were extracted and pooled for analysis. RESULTS A total of 12 retrospective studies involving 1289 patients and 1850 lesions were included in the analysis. EMR was found to have a shorter operation time by 53.6 minutes (95% CI: 51.3, 55.9, P<0.001) and fewer incidences of severe postoperative complications such as perforation and delayed bleeding (OR = 0.40, 95%CI: 0.23, 0.71, P<0.001). On the other hand, ESD had higher rates of en-bloc resection (OR = 0.15, 95%CI: 0.07, 0.30, P<0.001) and R0 resection (OR = 0.32, 95%CI: 0.16, 0.65, P<0.001). Recurrence after EMR was found to be significantly higher than that after ESD surgery (OR = 5.88, 95%CI: 2.15, 16.07, P = 0.037). CONCLUSIONS The study suggests that the choice of surgical method may have a greater impact on recurrence compared to the pathological type, and that ESD may be more suitable for the treatment of malignant lesions despite its higher rates of severe postoperative complications and longer operation time.
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Affiliation(s)
- Nian Wang
- Division of Gastroenterology, Wuhan No. 1 Hospital, Wuhan, China
| | - Lei Shu
- Division of Gastroenterology, Wuhan No. 1 Hospital, Wuhan, China
| | - Song Liu
- Division of Gastroenterology, Wuhan No. 1 Hospital, Wuhan, China
| | - Lin Yang
- Division of Gastroenterology, Wuhan No. 1 Hospital, Wuhan, China
| | - Tao Bai
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhaohong Shi
- Division of Gastroenterology, Wuhan No. 1 Hospital, Wuhan, China
| | - Xinghuang Liu
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Namikawa K, Kamada T, Fujisaki J, Sato Y, Murao T, Chiba T, Kaizaki Y, Ishido K, Ihara Y, Kurahara K, Suga T, Suzuki H, Ito M, Hirakawa K, Maruyama Y, Gotoda T, Hosokawa O, Koike T, Mabe K, Yao T, Inui K, Iishi H, Ogata H, Furuta T, Haruma K. Clinical characteristics and long-term prognosis of type 1 gastric neuroendocrine tumors in a large Japanese national cohort. Dig Endosc 2023; 35:757-766. [PMID: 36721901 DOI: 10.1111/den.14529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Accepted: 01/29/2023] [Indexed: 02/02/2023]
Abstract
OBJECTIVES Optimal management of type 1 gastric neuroendocrine tumors (T1-GNETs) remains unknown, with few reports on their long-term prognosis. This study investigated the clinical characteristics and long-term prognosis of T1-GNETs. METHODS We reviewed the medical records of patients diagnosed with T1-GNET during 1991-2019 at 40 institutions in Japan. RESULTS Among 172 patients, endoscopic resection (ER), endoscopic surveillance, and surgery were performed in 84, 61, and 27, respectively, including 27, 77, and 2 patients with pT1a-M, pT1b-SM, and pT2 tumors, respectively. The median tumor diameter was 5 (range 0.8-55) mm. Four (2.9%) patients had lymph node metastasis (LNM); none had liver metastasis. LNM rates were significantly higher in tumors with lymphovascular invasion (LVI) (15.8%; 3/19) than in those without (1.1%; 1/92) (P = 0.016). For tumors <10 mm, LVI and LNM rates were 18.4% (14/76) and 2.2% (2/90), respectively, which were not significantly different from those of tumors 10-20 mm (LVI 13.3%; 2/15, P = 0.211; and LNM 0%; 0/17, P = 1.0). However, these rates were significantly lower than those of tumors >20 mm (LVI 60%; 3/5, P = 0.021; and LNM 40%; 2/5, P = 0.039). No tumor recurrence or cause-specific death occurred during the median follow-up of 10.1 (1-25) years. The 10-year overall survival rate was 97%. CONCLUSIONS Type 1 gastric neuroendocrine tumors showed indolent nature and favorable long-term prognoses. LVI could be useful in indicating the need for additional treatments. ER for risk prediction of LNM should be considered for tumors <10 mm and may be feasible for tumors 10-20 mm. TRIAL REGISTRATION The study protocol was registered in the University Hospital Medical Information Network (UMIN) under the identifier UMIN000029927.
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Affiliation(s)
- Ken Namikawa
- Department of Gastroenterology, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
- Research Group on the Treatment Guidelines for Gastric Carcinoids Associated with Autoimmune Gastritis in Japan, Tokyo, Japan
| | - Tomoari Kamada
- Department of Health Care Medicine, Kawasaki Medical School, Okayama, Japan
- Research Group on the Treatment Guidelines for Gastric Carcinoids Associated with Autoimmune Gastritis in Japan, Tokyo, Japan
| | - Junko Fujisaki
- Department of Gastroenterology, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
- Research Group on the Treatment Guidelines for Gastric Carcinoids Associated with Autoimmune Gastritis in Japan, Tokyo, Japan
| | - Yuichi Sato
- Department of Gastroenterology, Niigata University Graduate School of Medicine and Dental Sciences, Niigata, Japan
- Research Group on the Treatment Guidelines for Gastric Carcinoids Associated with Autoimmune Gastritis in Japan, Tokyo, Japan
| | - Takahisa Murao
- Department of Health Care Medicine, Kawasaki Medical School, Okayama, Japan
- Research Group on the Treatment Guidelines for Gastric Carcinoids Associated with Autoimmune Gastritis in Japan, Tokyo, Japan
| | - Tsutomu Chiba
- Department of Gastroenterology and Hepatology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
- Research Group on the Treatment Guidelines for Gastric Carcinoids Associated with Autoimmune Gastritis in Japan, Tokyo, Japan
| | - Yasuharu Kaizaki
- Department of Pathology, Fukui Prefectural Hospital, Fukui, Japan
- Research Group on the Treatment Guidelines for Gastric Carcinoids Associated with Autoimmune Gastritis in Japan, Tokyo, Japan
| | - Kenji Ishido
- Department of Gastroenterology, Kitasato University School of Medicine, Kanagawa, Japan
- Research Group on the Treatment Guidelines for Gastric Carcinoids Associated with Autoimmune Gastritis in Japan, Tokyo, Japan
| | - Yutaro Ihara
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
- Research Group on the Treatment Guidelines for Gastric Carcinoids Associated with Autoimmune Gastritis in Japan, Tokyo, Japan
| | - Koichi Kurahara
- Division of Gastroenterology, Matsuyama Red Cross Hospital, Ehime, Japan
- Research Group on the Treatment Guidelines for Gastric Carcinoids Associated with Autoimmune Gastritis in Japan, Tokyo, Japan
| | - Tomoaki Suga
- Endoscopic Examination Center, Shinshu University, Nagano, Japan
- Research Group on the Treatment Guidelines for Gastric Carcinoids Associated with Autoimmune Gastritis in Japan, Tokyo, Japan
| | - Haruhisa Suzuki
- Endoscopy Division, National Cancer Center Hospital, Tokyo, Japan
- Research Group on the Treatment Guidelines for Gastric Carcinoids Associated with Autoimmune Gastritis in Japan, Tokyo, Japan
| | - Masanori Ito
- Department of General Internal Medicine, Hiroshima University Hospital, Hiroshima, Japan
- Research Group on the Treatment Guidelines for Gastric Carcinoids Associated with Autoimmune Gastritis in Japan, Tokyo, Japan
| | - Katsuya Hirakawa
- Division of Gastroenterology, Fukuoka Red Cross Hospital, Fukuoka, Japan
- Research Group on the Treatment Guidelines for Gastric Carcinoids Associated with Autoimmune Gastritis in Japan, Tokyo, Japan
| | - Yasuhiko Maruyama
- Division of Gastroenterology, Fujieda Municipal General Hospital, Shizuoka, Japan
- Research Group on the Treatment Guidelines for Gastric Carcinoids Associated with Autoimmune Gastritis in Japan, Tokyo, Japan
| | - Takuji Gotoda
- Department of Gastroenterology, Nihon University Hospital, Tokyo, Japan
- Research Group on the Treatment Guidelines for Gastric Carcinoids Associated with Autoimmune Gastritis in Japan, Tokyo, Japan
| | - Osamu Hosokawa
- Department of Surgery, Yokohama Sakae Kyosai Hospital, Kanagawa, Japan
- Research Group on the Treatment Guidelines for Gastric Carcinoids Associated with Autoimmune Gastritis in Japan, Tokyo, Japan
| | - Tomohiro Koike
- Division of Gastroenterology, Tohoku University Graduate School of Medicine, Miyagi, Japan
- Research Group on the Treatment Guidelines for Gastric Carcinoids Associated with Autoimmune Gastritis in Japan, Tokyo, Japan
| | - Katsuhiro Mabe
- Junpukai Health Maintenance Center - Kurashiki, Okayama, Japan
- Research Group on the Treatment Guidelines for Gastric Carcinoids Associated with Autoimmune Gastritis in Japan, Tokyo, Japan
| | - Takashi Yao
- Department of Human Pathology, Juntendo University School of Medicine, Tokyo, Japan
- Research Group on the Treatment Guidelines for Gastric Carcinoids Associated with Autoimmune Gastritis in Japan, Tokyo, Japan
| | - Kazuo Inui
- Department of Gastroenterology Yamashita Hospital, Aichi, Japan
- Research Group on the Treatment Guidelines for Gastric Carcinoids Associated with Autoimmune Gastritis in Japan, Tokyo, Japan
| | - Hiroyasu Iishi
- Department of Gastroenterology, Itami City Hospital, Hyogo, Japan
- Research Group on the Treatment Guidelines for Gastric Carcinoids Associated with Autoimmune Gastritis in Japan, Tokyo, Japan
| | - Haruhiko Ogata
- Center for Diagnostic and Therapeutic Endoscopy, Keio University School of Medicine, Tokyo, Japan
- Research Group on the Treatment Guidelines for Gastric Carcinoids Associated with Autoimmune Gastritis in Japan, Tokyo, Japan
| | - Takahisa Furuta
- Center for Clinical Research, Hamamatsu University School of Medicine, Shizuoka, Japan
- Research Group on the Treatment Guidelines for Gastric Carcinoids Associated with Autoimmune Gastritis in Japan, Tokyo, Japan
| | - Ken Haruma
- Division of Gastroenterology, Department of Internal Medicine 2, Kawasaki Medical School, Okayama, Japan
- Research Group on the Treatment Guidelines for Gastric Carcinoids Associated with Autoimmune Gastritis in Japan, Tokyo, Japan
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10
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Matsuno K, Miyamoto H, Kitada H, Yoshimatsu S, Tamura F, Sakurai K, Fukubayashi K, Shono T, Setoyama H, Matsuyama T, Suko S, Narita R, Honda M, Tateyama M, Naoe H, Morinaga J, Tanaka Y, Gushima R. Comparison of endoscopic submucosal resection with ligation and endoscopic submucosal dissection for small rectal neuroendocrine tumors: A multicenter retrospective study. DEN OPEN 2023; 3:e163. [PMID: 36176350 PMCID: PMC9478042 DOI: 10.1002/deo2.163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Revised: 08/12/2022] [Accepted: 08/19/2022] [Indexed: 11/23/2022]
Abstract
Objectives Endoscopic submucosal resection with band ligation (ESMR‐L) and endoscopic submucosal dissection (ESD) are both standard endoscopic resection methods for rectal neuroendocrine tumors (NETs) <10 mm in size. However, there is no definitive consensus on which is better. Here, we compared the efficacy of ESMR‐L and ESD for small rectal NETs. Methods This was a multicenter retrospective cohort study including 205 patients with rectal NETs who underwent ESMR‐L or ESD. Treatment outcomes were compared by univariate analysis, multivariate analysis, and inverse probability treatment weighting (IPTW) using propensity scores. Subgroup analysis evaluated the impact of the endoscopist's experience on the technical outcome. Results Eighty‐nine patients were treated by ESMR‐L and 116 by ESD. The R0 resection rate was not significantly different between the two (90% vs. 92%, p = 0.73). The procedure time of ESMR‐L was significantly shorter than for ESD (17 min vs. 52 min, p < 0.01) and the hospitalization period was also significantly shorter (3 days vs. 5 days, p < 0.01). These results were confirmed by multivariate analysis and also after IPTW adjustment. The procedure time of ESD was significantly prolonged by a less‐experienced endoscopist (49 min vs. 70 min, p = 0.02), but that of ESMR‐L was not affected (17 min vs. 17 min, p = 0.27). Conclusions For small rectal NETs, both ESMR‐L and ESD showed similar high complete resection rates. However, considering the shorter procedure time and shorter hospitalization period, ESMR‐L is the more efficient treatment method, especially for less‐experienced endoscopists.
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Affiliation(s)
- Kenshi Matsuno
- Department of Gastroenterology and Hepatology Faculty of Life Sciences Kumamoto University Kumamoto Japan
| | - Hideaki Miyamoto
- Department of Gastroenterology and Hepatology Faculty of Life Sciences Kumamoto University Kumamoto Japan
| | - Hideki Kitada
- Department of Gastroenterology Japanese Red Cross Kumamoto Hospital Kumamoto Japan
| | - Shinichi Yoshimatsu
- Department of Gastroenterology Kumamoto General Hospital Community Health Care Organization Kumamoto Japan
| | - Fumio Tamura
- Department of Gastroenterology Kumamoto Regional Medical Center Kumamoto Japan
| | | | | | - Takashi Shono
- Department of Gastroenterology Kumamoto Chuo Hospital Kumamoto Japan
| | - Hiroko Setoyama
- Department of Gastroenterology and Hepatology Faculty of Life Sciences Kumamoto University Kumamoto Japan
- Department of Gastroenterology Kumamoto Rosai Hospital Kumamoto Japan
| | - Taichi Matsuyama
- Department of Gastroenterology National Hospital Organization Kumamoto Medical Center Kumamoto Japan
| | - Shinichiro Suko
- Department of Gastroenterology Saiseikai Kumamoto Hospital Kumamoto Japan
| | - Rei Narita
- Department of Gastroenterology Minamata City Hospital and Medical Center Kumamoto Japan
| | - Munenori Honda
- Department of Gastroenterology and Hepatology Faculty of Life Sciences Kumamoto University Kumamoto Japan
| | - Masakuni Tateyama
- Department of Gastroenterology and Hepatology Faculty of Life Sciences Kumamoto University Kumamoto Japan
| | - Hideaki Naoe
- Department of Gastroenterology and Hepatology Faculty of Life Sciences Kumamoto University Kumamoto Japan
| | - Jun Morinaga
- Department of Clinical Investigation (Biostatistics) Kumamoto University Hospital Kumamoto Japan
| | - Yasuhito Tanaka
- Department of Gastroenterology and Hepatology Faculty of Life Sciences Kumamoto University Kumamoto Japan
| | - Ryosuke Gushima
- Department of Gastroenterology and Hepatology Faculty of Life Sciences Kumamoto University Kumamoto Japan
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11
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Goo JJ, Baek DH, Kim HW, Lee HS, Lee JY, Park SB, Song GA, Lee SH, Lee JH. Clinical outcomes and risk factors associated with poor prognosis after endoscopic resection of 10-20 mm rectal neuroendocrine tumors: a multicenter, retrospective study of 10-year experience. Surg Endosc 2023:10.1007/s00464-023-09999-4. [PMID: 36947224 DOI: 10.1007/s00464-023-09999-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Accepted: 02/27/2023] [Indexed: 03/23/2023]
Abstract
BACKGROUND The efficacy of endoscopic resection for of 10-20 mm rectal neuroendocrine tumor (NET) remains controversial. We aimed to evaluate the clinical outcomes and risk factors associated with poor prognosis after endoscopic resection of 10-20 mm rectal NET and to determine the optimal treatment. METHODS Patients who underwent endoscopic resection for rectal NET in four tertiary hospitals were enrolled, and data on with the clinical outcomes and risk factors related to poor prognosis were retrospectively analyzed. RESULTS A total of 105 patients who underwent endoscopic submucosal resection (ESD; n = 65, 61.9%), modified endoscopic mucosal resection (mEMR; n = 31, 29.5%), and conventional EMR (cEMR; n = 9, 8.6%) were enrolled. The mean follow-up period was 41.2 ± 21.9 months. In the morphologic findings, the mean diameter was 11.6 mm (range 10-19); the shape was sessile (50.5%) and mixed type (49.5%), and surface depression was observed in 41.9% of patients. In the histologic findings, 87.6% of patients had G1 and 12.4% G2 tumor grade, and 3.8% of patients had lymphovascular invasion. The overall en bloc and histologically complete (R0) resections were 99.1% and 76.2%, respectively. cEMR was a less-frequently developed R0 resection. In the univariate and multivariate analyses for R0 resection, only surface depression was significantly associated. Regional or distant organs metastasis during follow-up developed in three patients (2.9%) and was significantly associated with female sex, redness, G2 tumor grade, and non-ESD methods. CONCLUSION Patients who underwent endoscopic resection of 10-20 mm rectal NET had good prognosis; therefore, endoscopic resection can be considered as the first-line treatment, particularly for 10-14 mm rectal NET. However, the risk factors, such as female sex, redness, G2 tumor grade and non-ESD methods, were associated with regional or distant metastases during follow-up. Therefore, patients with these risk factors should be carefully monitored.
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Affiliation(s)
- Ja Jun Goo
- Department of Internal Medicine, Pusan National University Yangsan Hospital, Yangsan, Korea
| | - Dong Hoon Baek
- Department of Internal Medicine, Pusan National University Hospital, Busan, Korea
| | - Hyung Wook Kim
- Department of Internal Medicine, Pusan National University Yangsan Hospital, Yangsan, Korea.
| | - Hong Sub Lee
- Department of Internal Medicine, Inje University Busan Paik Hospital, Busan, Korea
| | - Jong Yoon Lee
- Department of Internal Medicine, Dong-A University Hospital, Busan, Korea
| | - Su Bum Park
- Department of Internal Medicine, Pusan National University Yangsan Hospital, Yangsan, Korea
| | - Geun Am Song
- Department of Internal Medicine, Pusan National University Hospital, Busan, Korea
| | - Sang Heon Lee
- Department of Internal Medicine, Inje University Busan Paik Hospital, Busan, Korea
| | - Jong Hoon Lee
- Department of Internal Medicine, Dong-A University Hospital, Busan, Korea
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12
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Ran JX, Xu LB, Chen WW, Yang HY, Weng Y, Peng YM. Is lymphatic invasion of microrectal neuroendocrine tumors an incidental event?: A case report. World J Clin Cases 2023; 11:859-865. [PMID: 36818613 PMCID: PMC9928715 DOI: 10.12998/wjcc.v11.i4.859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 01/02/2023] [Accepted: 01/16/2023] [Indexed: 02/03/2023] Open
Abstract
BACKGROUND A rectal neuroendocrine tumor (rNET) is a malignant tumor originating from neuroendocrine cells. Currently, tumor size is the primary basis for assessing tumor risk.
CASE SUMMARY This article reports the case of a 46-year-old male patient who underwent a colonoscopy that found a 3 mm rectal polypoid bulge. The pathological examination of a sample collected with biopsy forceps revealed a neuroendocrine tumor. Further endoscopic submucosal dissection rescue therapy was used. The presence of lymphatic vessels indicated that the tumor had infiltrated the negative resection margin. The lesion was located in the distal rectum near the anal canal. Therefore, to ensure the patient’s quality of life, follow-up observation was conducted after full communication with the patient. No tumor recurrence or distant metastasis has been found during the 13-mo follow-up after surgery.
CONCLUSION Despite the presence of lymphatic invasion and extremely small diameter rNETs in our case, this phenomenon may not imply a higher risk of distant lymph node and organ metastasis.
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Affiliation(s)
- Jing-Xue Ran
- Clinical Medical School, Guizhou Medical University, Guiyang 550000, Guizhou Province, China
| | - Liang-Bi Xu
- Endoscopy Center, Affiliated Hospital of Guizhou Medical University, Guiyang 550000, Guizhou Province, China
| | - Wan-Wei Chen
- Endoscopy Center, Affiliated Hospital of Guizhou Medical University, Guiyang 550000, Guizhou Province, China
| | - Hao-Yi Yang
- Endoscopy Center, Affiliated Hospital of Guizhou Medical University, Guiyang 550000, Guizhou Province, China
| | - Yan Weng
- Clinical Medical School, Guizhou Medical University, Guiyang 550000, Guizhou Province, China
| | - Yong-Mei Peng
- Clinical Medical School, Guizhou Medical University, Guiyang 550000, Guizhou Province, China
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13
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Rectal neuroendocrine neoplasms: what the radiologists should know. ABDOMINAL RADIOLOGY (NEW YORK) 2022; 47:4016-4031. [PMID: 35288791 DOI: 10.1007/s00261-022-03474-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 02/18/2022] [Accepted: 02/21/2022] [Indexed: 02/06/2023]
Abstract
Neuroendocrine neoplasms of the rectum (R-NENs) are rare; however, their incidence has increased almost threefold in the last few decades. Imaging of R-NENs includes two primary categories: anatomic/morphologic imaging comprised of endoscopic ultrasound (EUS), computed tomography (CT), magnetic resonance imaging (MRI), and functional/molecular imaging comprising of planar scintigraphy, single-photon emission computed tomography (SPECT), and positron emission tomography (PET). The management depends on stage, dimension, atypical features, histological grade, and lymphovascular invasion (LVI). Low-risk local R-NENs can be resected endoscopically, and high-risk or locally advanced neoplasms can be treated with radical surgery and lymphadenectomy and/or chemoradiation. The review article focuses on imaging illustrations and discusses applications of different imaging modalities in diagnosing and managing R-NENs.
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14
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Sun D, Ren Z, Xu E, Cai S, Qi Z, Chen Z, Liu J, Shi Q, Zhou P, Zhong Y. Long-term clinical outcomes of endoscopic submucosal dissection in rectal neuroendocrine tumors based on resection margin status: a real-world study. Surg Endosc 2022; 37:2644-2652. [PMID: 36380122 DOI: 10.1007/s00464-022-09710-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 10/11/2022] [Indexed: 11/16/2022]
Abstract
BACKGROUND Endoscopic submucosal dissection (ESD) has been widely adopted in treating rectal neuroendocrine tumors (NETs). However, clinical outcomes in rectal NETs after ESD with different resection margin status remain scanty, particularly in patients with positive resection margins. This study aimed to evaluate the long-term clinical outcomes of ESD in rectal NET based on the resection margin status. METHODS This retrospective study included 436 patients diagnosed with rectal NET who had undergone ESD. Clinical data, including age, sex, tumor size, stage, invasion, and the resection margin status, were collected. Further, the patients were assessed for complications, recurrence, distant metastasis, and long-term outcomes. RESULTS Among all 436 patients, 395 patients had their primary ESD in our hospital. Complete resection was achieved in 319 patients. Patients who did not achieve complete resection opted for follow-up (n = 73), salvage surgery (n = 1) and salvage ESD (n = 2). Another 41 had their primary ESD in other hospital with incomplete resection and had salvage ESD in our hospital. All 436 patients had a median follow-up period of 61.4 months (range 33.4-125.3 months). During the follow-up period, two patients developed recurrences, while three patients developed metastasis. There were no significant differences in the 5-year progression-free survival and overall survival between patients with incomplete resection opting for follow-up compared to the other two groups (P = 0.5/0.8). However, the complication rates were significantly higher in patients who received salvage ESD. CONCLUSION This study demonstrated that positive resection margins have no influence on survival in patients with rectal NET treated using ESD.
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Affiliation(s)
- Di Sun
- Endoscopy Center, Zhongshan Hospital of Fudan University, 180 Fenglin Road, Shanghai, 200032, China
- Endoscopy Research Institute of Fudan University, 180 Fenglin Road, Shanghai, 200032, China
- Department of Breast Diseases, International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China
| | - Zhong Ren
- Endoscopy Center, Zhongshan Hospital of Fudan University, 180 Fenglin Road, Shanghai, 200032, China
- Endoscopy Research Institute of Fudan University, 180 Fenglin Road, Shanghai, 200032, China
| | - Enpan Xu
- Endoscopy Center, Zhongshan Hospital of Fudan University, 180 Fenglin Road, Shanghai, 200032, China
- Endoscopy Research Institute of Fudan University, 180 Fenglin Road, Shanghai, 200032, China
| | - Shilun Cai
- Endoscopy Center, Zhongshan Hospital of Fudan University, 180 Fenglin Road, Shanghai, 200032, China
- Endoscopy Research Institute of Fudan University, 180 Fenglin Road, Shanghai, 200032, China
| | - Zhipeng Qi
- Endoscopy Center, Zhongshan Hospital of Fudan University, 180 Fenglin Road, Shanghai, 200032, China
- Endoscopy Research Institute of Fudan University, 180 Fenglin Road, Shanghai, 200032, China
| | - Zhanghan Chen
- Endoscopy Center, Zhongshan Hospital of Fudan University, 180 Fenglin Road, Shanghai, 200032, China
- Endoscopy Research Institute of Fudan University, 180 Fenglin Road, Shanghai, 200032, China
| | - Jingyi Liu
- Endoscopy Center, Zhongshan Hospital of Fudan University, 180 Fenglin Road, Shanghai, 200032, China
- Endoscopy Research Institute of Fudan University, 180 Fenglin Road, Shanghai, 200032, China
| | - Qiang Shi
- Endoscopy Center, Zhongshan Hospital of Fudan University, 180 Fenglin Road, Shanghai, 200032, China.
- Endoscopy Research Institute of Fudan University, 180 Fenglin Road, Shanghai, 200032, China.
| | - Pinghong Zhou
- Endoscopy Center, Zhongshan Hospital of Fudan University, 180 Fenglin Road, Shanghai, 200032, China.
- Endoscopy Research Institute of Fudan University, 180 Fenglin Road, Shanghai, 200032, China.
| | - Yunshi Zhong
- Endoscopy Center, Zhongshan Hospital of Fudan University, 180 Fenglin Road, Shanghai, 200032, China.
- Endoscopy Research Institute of Fudan University, 180 Fenglin Road, Shanghai, 200032, China.
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15
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Nasu T, Esaki M, Shoguchi Y, Bai X, Minoda Y, Ogino H, Ihara E. Traction-assisted hybrid endoscopic submucosal dissection for small rectal neuroendocrine tumors. Endoscopy 2022; 54:E550-E551. [PMID: 34798677 DOI: 10.1055/a-1662-4965] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Affiliation(s)
- Takayuki Nasu
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Mitsuru Esaki
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.,Division of Gastroenterology and Hepatology, Department of Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Yoshihisa Shoguchi
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Xiaopeng Bai
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yosuke Minoda
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Haruei Ogino
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Eikichi Ihara
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.,Department of Gastroenterology and Metabolism, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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16
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Sekiguchi M, Hotta K, Takeuchi Y, Tanaka S, Yamamoto H, Shinmura K, Harada K, Uraoka T, Hisabe T, Sano Y, Kondo H, Horimatsu T, Kikuchi H, Kawamura T, Nagata S, Yamamoto K, Tajika M, Tsuji S, Kusaka T, Okuyama Y, Yoshida N, Moriyama T, Hasebe A, So S, Kobara H, Kashida H, Miyanaga R, Kato S, Hayashi Y, Sada M, Fukuzawa M, Kato H, Takayama T, Konishi J, Matsushita HO, Narasaka T, Ohata K, Togashi K, Nakamura H, Moriichi K, Oda Y, Kanda N, Kuwai T, Terai S, Sanomura M, Kitamura S, Miyamoto H, Kiriyama S, Mizuno C, Saito Y, Sekine S, Ito S, Nakahira H, Oka S, Hayashi Y, Yoshimura K, Ishikawa H, Matsuda T. Characteristics of colorectal neuroendocrine tumors in patients prospectively enrolled in a Japanese multicenter study: a first report from the C-NET STUDY. J Gastroenterol 2022; 57:547-558. [PMID: 35554678 DOI: 10.1007/s00535-022-01877-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Accepted: 04/23/2022] [Indexed: 02/04/2023]
Abstract
BACKGROUND This is the first report from a multicenter prospective cohort study of colorectal neuroendocrine tumor (NET), the C-NET STUDY, conducted to assess the long-term outcomes of the enrolled patients. This report aimed to elucidate the clinicopathological features of the enrolled patients and lesions. METHODS Colorectal NET patients aged 20-74 years were consecutively enrolled and followed up at 50 institutions. The baseline characteristics and clinicopathological findings at enrollment and treatment were assessed. RESULTS A total of 495 patients with 500 colorectal NETs were included. The median patient age was 54 years, and 85.3% were asymptomatic. The most frequent lesion location was the lower rectum (88.0%); 99.4% of the lesions were clinically diagnosed to be devoid of metastatic findings, and 95.4% were treated with endoscopic resection. Lesions < 10 mm comprised 87.0% of the total, 96.6% had not invaded the muscularis propria, and 92.6% were classified as WHO NET grade 1. Positive lymphovascular involvement was found in 29.2% of the lesions. Its prevalence was high even in small NETs with immunohistochemical/special staining for pathological assessment (26.4% and 40.9% in lesions sized < 5 mm and 5-9 mm, respectively). Among 70 patients who underwent radical surgery primarily or secondarily, 18 showed positive lymph node metastasis. CONCLUSIONS The characteristics of real-world colorectal NET patients and lesions are elucidated. The high positivity of lymphovascular involvement in small NETs highlights the necessity of assessing the clinical significance of positive lymphovascular involvement based on long-term outcomes, which will be examined in later stages of the C-NET STUDY. TRIAL REGISTRATION NUMBER UMIN000025215.
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Affiliation(s)
- Masau Sekiguchi
- Endoscopy Division, Cancer Screening Center, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan.
| | - Kinichi Hotta
- Division of Endoscopy, Shizuoka Cancer Center, Shizuoka, Japan
| | - Yoji Takeuchi
- Department of Gastrointestinal Oncology, Osaka International Cancer Institute, Osaka, Japan
| | - Shinji Tanaka
- Department of Endoscopy, Hiroshima University Hospital, Hiroshima, Japan
| | - Hironori Yamamoto
- Department of Medicine, Division of Gastroenterology, Jichi Medical University, Tochigi, Japan
| | - Kensuke Shinmura
- Department of Gastroenterology and Endoscopy, National Cancer Center Hospital East, Chiba, Japan
| | - Keita Harada
- Department of Gastroenterology and Hepatology, Okayama University Hospital, Okayama, Japan
| | - Toshio Uraoka
- Department of Gastroenterology and Hepatology, Gunma University Graduate School of Medicine, Gunma, Japan
| | - Takashi Hisabe
- Department of Gastroenterology, Fukuoka University Chikushi Hospital, Fukuoka, Japan
| | - Yasushi Sano
- Gastrointestinal Center, Sano Hospital, Hyogo, Japan
| | - Hitoshi Kondo
- Department of Gastroenterology, Tonan Hospital, Hokkaido, Japan
| | - Takahiro Horimatsu
- Institute for Advancement of Clinical and Translational Science, Kyoto University Hospital, Kyoto, Japan
| | - Hidezumi Kikuchi
- Department of Gastroenterology and Hematology, Hirosaki University Graduate School of Medicine, Aomori, Japan
| | - Takuji Kawamura
- Department of Gastroenterology, Kyoto Second Red Cross Hospital, Kyoto, Japan
| | - Shinji Nagata
- Department of Gastroenterology, Hiroshima City Asa Citizens Hospital, Hiroshima, Japan
| | - Katsumi Yamamoto
- Department of Gastroenterology, JCHO Osaka Hospital, Osaka, Japan
| | - Masahiro Tajika
- Department of Endoscopy, Aichi Cancer Center Hospital, Aichi, Japan
| | - Shigetsugu Tsuji
- Department of Gastroenterology, Ishikawa Prefectural Central Hospital, Ishikawa, Japan
| | - Toshihiro Kusaka
- Department of Gastroenterology and Hepatology, Kyoto Katsura Hospital, Kyoto, Japan
| | - Yusuke Okuyama
- Department of Gastroenterology, Kyoto First Red Cross Hospital, Kyoto, Japan
| | - Naohisa Yoshida
- Department of Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Tomohiko Moriyama
- International Medical Department, Kyushu University Hospital, Fukuoka, Japan
| | - Aki Hasebe
- Department of Gastroenterology, Shikoku Cancer Center, Ehime, Japan
| | - Suketo So
- Department of Gastroenterology, Tobata Kyoritsu Hospital, Fukuoka, Japan
| | - Hideki Kobara
- Department of Gastroenterology and Neurology, Faculty of Medicine, Kagawa University, Kagawa, Japan
| | - Hiroshi Kashida
- Department of Gastroenterology and Hepatology, Faculty of Medicine, Kindai University, Osaka, Japan
| | - Ryoichi Miyanaga
- Department of Gastroenterology, National Hospital Organization Tokyo Medical Center, Tokyo, Japan
| | - Sosuke Kato
- Department of Gastroenterology, NTT Medical Center, Sapporo, Hokkaido, Japan
| | - Yoshito Hayashi
- Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Miwa Sada
- Department of Gastroenterology, Kitasato University Hospital, Kanagawa, Japan
| | - Masakatsu Fukuzawa
- Department of Gastroenterology and Hepatology, Tokyo Medical University Hospital, Tokyo, Japan
| | - Hiroyuki Kato
- Department of Clinical Laboratory and Endoscopy, Tokyo Women's Medical University Adachi Medical Center, Tokyo, Japan
| | - Tetsuji Takayama
- Department of Gastroenterology and Oncology, Graduate School of Biomedical Sciences, Tokushima University, Tokushima, Japan
| | - Jun Konishi
- Department of Gastroenterology, Tochigi Cancer Center, Tochigi, Japan
| | | | - Toshiaki Narasaka
- Division of Endoscopic Center, University of Tsukuba Hospital, Ibaraki, Japan
| | - Ken Ohata
- Department of Gastrointestinal Endoscopy, NTT Medical Center Tokyo, Tokyo, Japan
| | - Kazutomo Togashi
- Department of Coloproctology, Aizu Medical Center, Fukushima Medical University, Fukushima, Japan
| | | | - Kentaro Moriichi
- Gastroenterology and Endoscopy, Division of Metabolism and Biosystemic Science, Gastroenterology, and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, Hokkaido, Japan
| | - Yasushi Oda
- Oda GI Endoscopy and Gastroenterology Clinic, Kumamoto, Japan
| | - Naoki Kanda
- Department of Gastroenterology and Hepatology, Takatsuki Red Cross Hospital, Osaka, Japan
| | - Toshio Kuwai
- Department of Gastroenterology, National Hospital Organization Kure Medical Center and Chugoku Cancer Center, Hiroshima, Japan
| | - Shuji Terai
- Division of Gastroenterology and Hepatology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Makoto Sanomura
- Department of Gastroenterology, Hokusetsu General Hospital, Osaka, Japan
| | - Shinji Kitamura
- Department of Gastroenterology, Sakai City Medical Center, Osaka, Japan
| | - Hayato Miyamoto
- Department of Gastroenterology, Hanwasumiyoshi General Hospital, Osaka, Japan
| | | | - Chiemi Mizuno
- Department of Gastroenterology and Hepatology, Saiseikai Suita Hospital, Osaka, Japan
| | - Yutaka Saito
- Endoscopy Division, National Cancer Center Hospital, Tokyo, Japan
| | - Shigeki Sekine
- Division of Diagnostic Pathology, National Cancer Center Hospital, Tokyo, Japan
| | - Sayo Ito
- Division of Endoscopy, Shizuoka Cancer Center, Shizuoka, Japan
| | - Hiroko Nakahira
- Department of Gastrointestinal Oncology, Osaka International Cancer Institute, Osaka, Japan
| | - Shiro Oka
- Department of Endoscopy, Hiroshima University Hospital, Hiroshima, Japan
| | - Yoshikazu Hayashi
- Department of Medicine, Division of Gastroenterology, Jichi Medical University, Tochigi, Japan
| | - Kenichi Yoshimura
- Department of Biostatistics, Medical Center for Translational and Clinical Research, Hiroshima University Hospital, Hiroshima, Japan
| | - Hideki Ishikawa
- Department of Molecular-Targeting Prevention, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Takahisa Matsuda
- Endoscopy Division, Cancer Screening Center, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan.,Division of Gastroenterology and Hepatology, Toho University Omori Medical Center, Tokyo, Japan
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17
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Analysis of Prognostic Risk Factors of Endoscopic Submucosal Dissection (ESD) and Curative Resection of Gastrointestinal Neuroendocrine Neoplasms. CONTRAST MEDIA & MOLECULAR IMAGING 2022; 2022:5248256. [PMID: 35854772 PMCID: PMC9286938 DOI: 10.1155/2022/5248256] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 04/08/2022] [Accepted: 06/02/2022] [Indexed: 11/22/2022]
Abstract
Objective To explore the prognostic risk factors of ESD curative resection of gastrointestinal-neuroendocrine neoplasms (GI-NENs). Methods A total of 97 patients treated with ESD successfully in our hospital were selected, their surgical site, size, number of resection lesions, operation time, intraoperative complications (such as bleeding and perforation), and treatment status were recorded, and the number of hemostatic clamps used after the postoperative follow-up results and the independent risk factors for ESD complications were obtained through the comparison between the noncomplication group and the ESD complication group using regression analysis. Results A total of 97 patients with gastrointestinal neuroendocrine tumors were treated with ESD. 61 were males, 36 were females, the ratio of male to female was 1.7 : 1, onset age was 20–78 years old, and median onset age was 50 years old. In 81 cases, tumors were located in the stomach, 10 in the duodenum, and 6 in the rectum. A total of 103 lesions were detected by endoscopy, including 1 case with 2 sites in the stomach, 5 cases with 2 sites in the rectum, and the rest were single. The tumor diameter was 0.3 ∼ 2.5 cm, and the median diameter was 0.6 cm; there were 25 sites with a diameter less than 5 cm. There were 57 places with 10 mm, 16 places with 10–15 mm, and 5 places with >15 mm. All ESD operations were performed in one piece, with a total resection rate of 100%; 89.6% (60/67) of postoperative pathology showed negative basal, and 90.3% (56/62) showed negative resection margin, with a complete resection rate of 88.9% (48/54). ESD's operation time is 6 ∼ 66 min, and the median time is 18 min. During the operation, 5 cases had small amount of bleeding, 3 cases were perforated, 2 cases of delayed postoperative bleeding, 1 case of bleeding was caused by the patient's failure to follow the advice of the doctor to eat a large amount of solid food too early, and 1 case of delayed perforation (all recovered and discharged). ESD operation that bled, age, gender, and perforation location, pathological grade, pathological classification, tumor diameter, tumor surface, operation time, number of titanium clips, origin, echo uniformity, and echo level were statistically insignificant (P > 0.05). Postoperative bleeding was related to the operation time (P=0.017), but it was not an independent risk factor for postoperative bleeding (P=0.118; OR, 0.226; 95% CI, 0.035–1.461). 59 cases were followed up by endoscopy after the operation, and recurrence or no new tumors were found. Conclusion ESD is an effective and safe treatment method for gastrointestinal neuroendocrine tumors with a diameter of 1-2 cm without invading the muscularis propria. The intraoperative complications seem to have little relationship with the patient; postoperative delayed bleeding is closely related to the ESD operation time but it is not an independent risk factor.
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18
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Kamigaichi Y, Yamashita K, Oka S, Tamari H, Shimohara Y, Nishimura T, Inagaki K, Okamoto Y, Tanaka H, Yuge R, Urabe Y, Arihiro K, Tanaka S. Clinical outcomes of endoscopic resection for rectal neuroendocrine tumors: Advantages of endoscopic submucosal resection with a ligation device compared to conventional EMR and ESD. DEN OPEN 2022; 2:e35. [PMID: 35310732 PMCID: PMC8828204 DOI: 10.1002/deo2.35] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 05/28/2021] [Accepted: 06/10/2021] [Indexed: 12/19/2022]
Abstract
Objectives Methods Results Conclusions
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Affiliation(s)
- Yuki Kamigaichi
- Department of Endoscopy Hiroshima University Hospital Hiroshima Japan
| | - Ken Yamashita
- Department of Endoscopy Hiroshima University Hospital Hiroshima Japan
| | - Shiro Oka
- Department of Gastroenterology and Metabolism Hiroshima University Hospital Hiroshima Japan
| | - Hirosato Tamari
- Department of Gastroenterology and Metabolism Hiroshima University Hospital Hiroshima Japan
| | - Yasutsugu Shimohara
- Department of Gastroenterology and Metabolism Hiroshima University Hospital Hiroshima Japan
| | - Tomoyuki Nishimura
- Department of Gastroenterology and Metabolism Hiroshima University Hospital Hiroshima Japan
| | - Katsuaki Inagaki
- Department of Gastroenterology and Metabolism Hiroshima University Hospital Hiroshima Japan
| | - Yuki Okamoto
- Department of Gastroenterology and Metabolism Hiroshima University Hospital Hiroshima Japan
| | - Hidenori Tanaka
- Department of Endoscopy Hiroshima University Hospital Hiroshima Japan
| | - Ryo Yuge
- Department of Endoscopy Hiroshima University Hospital Hiroshima Japan
| | - Yuji Urabe
- Division of Regeneration and Medicine Center for Translational and Clinical Research Hiroshima University Hospital Hiroshima Japan
| | - Koji Arihiro
- Department of Anatomical Pathology Hiroshima University Hospital Hiroshima Japan
| | - Shinji Tanaka
- Department of Endoscopy Hiroshima University Hospital Hiroshima Japan
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19
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Miyashita H, Yamasaki T, Akita Y, Ando Y, Maruyama Y, Nagata Y, Miyazaki R, Noguchi M, Sawada R, Sakurai T, Kato T, Sumiyama K, Suka M, Hamatani S, Saruta M. Small Neuroendocrine Tumors of the Whole Gastrointestinal Tract Performed Endoscopic or Surgical Resections Also Show Positive for Lymphovascular Invasion. Digestion 2021; 102:921-928. [PMID: 34265770 DOI: 10.1159/000517282] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 05/13/2021] [Indexed: 02/04/2023]
Abstract
BACKGROUND AND AIMS In gastrointestinal neuroendocrine tumors (GI-NETs), tumor size and grading based on cellular proliferative ability indicate biological malignancy but not necessarily clinically efficient prognostic stratification. We analyzed tumor size- and grading-based prevalence of lymphovascular invasion in GI-NETs to establish whether these are true biological malignancy indicators. METHODS We included 155 cases (165 lesions), diagnosed histologically with GI-NETs, that had undergone endoscopic or surgical resection. Patient age, sex, method of treatment, tumor size, invasion depth, lymphovascular invasion positivity according to Ki-67 index-based neuroendocrine tumor grading, distant metastases, and outcome were evaluated. The primary endpoints were the prevalence of lymphovascular invasion according to tumor size and grading. RESULTS Overall, 24.8% were positive for lymphovascular invasion. There was a high rate of lymphovascular invasion positivity even among grade 1 cases (22.8%). The rate of lymphovascular invasion was 3.4% for grade 1 cases <5 mm, with a lymphovascular invasion rate of 8.7% for those 5-10 mm. Lymphovascular invasion ≤10% required a tumor size ≤8 mm, and lymphovascular invasion ≤5% required a tumor size ≤6 mm. A cutoff of 6 mm was identified, which yielded a sensitivity of 79% and a specificity of 63%. Even small GI-NETs grade 1 of the whole GI tract also showed positive for lymphovascular invasion. CONCLUSIONS GI-NETs ≤10 mm had a lymphovascular invasion prevalence exceeding 10%. The lymphovascular invasion impact in GI-NET development is incompletely understood, but careful follow-up, including consideration of additional surgical resection, is crucial in cases with lymphovascular invasion.
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Affiliation(s)
- Haruna Miyashita
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Takuji Yamasaki
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Yoshihiro Akita
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Yoshitaka Ando
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Yuki Maruyama
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Yusuke Nagata
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Ryosuke Miyazaki
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Masaaki Noguchi
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Ryoichi Sawada
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Toshiyuki Sakurai
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Tomohiro Kato
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Kazuki Sumiyama
- Department of Endoscopy, The Jikei University School of Medicine, Tokyo, Japan
| | - Machi Suka
- Department of Public Health and Environmental Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Shigeharu Hamatani
- Department of Pathology, The Jikei University School of Medicine, Tokyo, Japan
| | - Masayuki Saruta
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
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20
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Waked B, De Maeyer F, Carton S, Pieter-Jan CUYLE, Vandamme T, Verslype C, Demetter P, Borbath I, Van Eycken L, Hoorens A, Geboes K, Van Damme N, Ribeiro S. Quality of pathology reporting and adherence to guidelines in rectal neuroendocrine neoplasms: a Belgian national study. Acta Clin Belg 2021; 77:823-831. [PMID: 34607538 DOI: 10.1080/17843286.2021.1985806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
The incidence of neuroendocrine neoplasms (NEN) in the rectum is rising since the introduction of colonoscopy screening programs. Guidelines, such as the European NeuroEndocrine Tumor Society (ENETS) algorithm, are mainly based on expert opinion. The goal of this nationwide study is to gain a better insight into the evolution in pathology reporting and adherence to the ENETS guidelines in Belgium. In Belgium, all NENs have to be reported to the Belgian Cancer Registry. We thoroughly reviewed all available pathology reports, coded as rectal NEN between 2004 and 2015, and reclassified according to World Health Organisation (WHO) classification 2019. To evaluate the adherence to the ENETS guidelines, population-based cancer registry data were linked with the medical procedures of the Belgian Health Insurance database. A total of 670 rectal NEN were retained and 16% of the cases needed reclassification. Annual incidence between 2004 and 2015 tripled from 0,20 to 0,61 per 100.000 inhabitants. Reporting of Ki67 proliferation index ameliorated most, while reporting of tumor size, lymphovascular and perineural invasion remained disappointing. Endoscopic ultrasound was performed in only 36.6% of the cases, while the mostly recommended mode of treatment (endoscopic/surgical/no resection) was followed in the majority of the cases. Incidence of rectal NEN in Belgium increased throughout the years and quality of pathology reporting improved especially after the WHO classification update in 2010. The growing awareness and knowledge among clinicians and pathologists in the community counters the need for centralization.
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Affiliation(s)
- Bruno Waked
- Ghent University Hospital, Department of Gastroenterology. Ghent, Belgium
| | - Filip De Maeyer
- Az Sint-Elisabeth Zottegem, Department of Gastroenterology. Godveerdegemstraat 69, Zottegem, Belgium
| | - Saskia Carton
- Imeldaziekenhuis, Bonheiden, Department of Gastroenterology. Bonheiden, Belgium
| | - CUYLE Pieter-Jan
- Imeldaziekenhuis, Bonheiden, Department of Gastroenterology. Bonheiden, Belgium
| | - Timon Vandamme
- Ziekenhuis Netwerk Antwerpen, Department of Gastroenterology. Antwerp, Belgium
| | - Chris Verslype
- University Hospital Gasthuisberg Leuven, Department of Gastroenterology. Leuven, Belgium
| | - Pieter Demetter
- Institute Jules Bordet, Department of Gastroenterology. Brussels, Belgium
| | - Ivan Borbath
- Cliniques Universitaires Saint-Luc, Department of Gastro-enterology. Brussels, Belgium
| | | | - Anne Hoorens
- Ghent University Hospital, Department of Pathology. Ghent, Belgium
| | - Karen Geboes
- Ghent University Hospital, Department of Gastroenterology. Ghent, Belgium
| | | | - Suzane Ribeiro
- Ghent University Hospital, Department of Gastroenterology. Ghent, Belgium
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21
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Nam SJ, Kim BC, Chang HJ, Jeon HH, Kim J, Kim SY. Risk Factors for Lymph Node Metastasis and Oncologic Outcomes in Small Rectal Neuroendocrine Tumors with Lymphovascular Invasion. Gut Liver 2021; 16:228-235. [PMID: 34552040 PMCID: PMC8924811 DOI: 10.5009/gnl20364] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 03/31/2021] [Accepted: 04/20/2021] [Indexed: 11/08/2022] Open
Abstract
Background/Aims Small rectal neuroendocrine tumors (NETs) are often managed with local resection (endoscopic or transanal excision) owing to their low risk of metastasis and recurrence. However, the clinical significance of lymphovascular invasion in resected specimens remains controversial. In this study, we aimed to analyze the frequency of and risk factors for lymph node metastasis proven by histopathologic examination after radical resection. Methods We retrospectively reviewed the records of 750 patients diagnosed with a rectal NET at four academic medical centers in South Korea between 2001 and 2019. The frequency of histopathologically proven lymph node metastasis and the associated risk factors were analyzed for small tumors (≤1.5 cm) with lymphovascular invasion. Results Among 750 patients, 75 had a small tumor (≤1.5 cm) with lymphovascular invasion, of whom 31 patients underwent endoscopic resection only and 44 patients underwent additional radical surgery. Among the 41 patients who underwent surgery and had available data, the rate of regional lymph node metastasis was 48.8% (20/41). In multivariate analysis, the Ki-67 index (odds ratio, 6.279; 95% confidence interval, 1.212 to 32.528; p=0.029) was an independent risk factor for lymph node metastasis. During the mean follow-up period of 37.7 months, only one case of recurrence was detected in the surgery group. The overall survival was not significantly different between radical resection and local resection (p=0.332). Conclusions Rectal NETs with lymphovascular invasion showed a significantly high rate of regional lymph node metastasis despite their small size (≤1.5 cm).
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Affiliation(s)
- Seung-Joo Nam
- Department of Internal Medicine, Kangwon National University School of Medicine, Chuncheon, Korea
| | - Byung Chang Kim
- Center for Colorectal Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Korea
| | - Hee Jin Chang
- Center for Colorectal Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Korea.,Department of Pathology, Research Institute and Hospital, National Cancer Center, Goyang, Korea.,Precision Medicine, Research Institute and Hospital, National Cancer Center, Goyang, Korea
| | - Han Ho Jeon
- Department of Internal Medicine, National Health Insurance Service Ilsan Hospital, Goyang, Korea
| | - Junho Kim
- Department of Internal Medicine, National Health Insurance Service Ilsan Hospital, Goyang, Korea
| | - Su Young Kim
- Divison of Gastroenterology, Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
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22
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Coutinho LMA, Lenz L, Kawaguti FS, Martins BC, Baba E, Gusmon C, Andrade G, Simas M, Safatle-Ribeiro A, Maluf-Filho F, Rodrigues R, Ribeiro U. UNDERWATER ENDOSCOPIC MUCOSAL RESECTION FOR SMALL RECTAL NEUROENDOCRINE TUMORS. ARQUIVOS DE GASTROENTEROLOGIA 2021; 58:210-213. [PMID: 34133614 DOI: 10.1590/s0004-2803.202100000-37] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 02/02/2021] [Indexed: 12/22/2022]
Abstract
BACKGROUND A common site of neuroendocrine tumors (NETs) is the rectum. The technique most often used is endoscopic mucosal resection with saline injection. However, deep margins are often difficult to obtain because submucosal invasion is common. Underwater endoscopic mucosal resection (UEMR) is a technique in which the bowel lumen is filled with water rather than air, precluding the need for submucosal lifting. OBJECTIVE This study aimed to evaluate the efficacy and safety of UEMR for removing small rectal neuroendocrine tumors (rNETs). METHODS Retrospective study with patients who underwent UEMR in two centers. UEMR was performed using a standard colonoscope. No submucosal injection was performed. Board-certified pathologists conducted histopathologic assessment. RESULTS UEMR for small rNET was performed on 11 patients (nine female) with a mean age of 55.8 years and 11 lesions (mean size 7 mm, range 3-12 mm). There were 9 (81%) patients with G1 rNET and two patients with G2, and all tumors invaded the submucosa with only one restricted to the mucosa. None case showed vascular or perineural invasion. All lesions were removed en bloc. Nine (81%) resections had free margins. Two patients had deep margin involvement; one had negative biopsies via endoscopic surveillance, and the other was lost to follow-up. No perforations or delayed bleeding occurred. CONCLUSION UEMR appeared to be an effective and safe alternative for treatment of small rNETs without adverse events and with high en bloc and R0 resection rates. Further prospective studies are needed to compare available endoscopic interventions and to elucidate the most appropriate endoscopic technique for resection of rNETs.
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Affiliation(s)
- Lara Meireles Azeredo Coutinho
- Universidade de São Paulo, Faculdade de Medicina, Instituto do Câncer do Estado de São Paulo (ICESP), Serviço de Endoscopia, São Paulo, SP, Brasil
| | - Luciano Lenz
- Universidade de São Paulo, Faculdade de Medicina, Instituto do Câncer do Estado de São Paulo (ICESP), Serviço de Endoscopia, São Paulo, SP, Brasil.,Fleury Medicina e Saúde, São Paulo, SP, Brasil
| | - Fabio S Kawaguti
- Universidade de São Paulo, Faculdade de Medicina, Instituto do Câncer do Estado de São Paulo (ICESP), Serviço de Endoscopia, São Paulo, SP, Brasil.,Fleury Medicina e Saúde, São Paulo, SP, Brasil
| | - Bruno Costa Martins
- Universidade de São Paulo, Faculdade de Medicina, Instituto do Câncer do Estado de São Paulo (ICESP), Serviço de Endoscopia, São Paulo, SP, Brasil.,Fleury Medicina e Saúde, São Paulo, SP, Brasil
| | - Elisa Baba
- Universidade de São Paulo, Faculdade de Medicina, Instituto do Câncer do Estado de São Paulo (ICESP), Serviço de Endoscopia, São Paulo, SP, Brasil
| | - Carla Gusmon
- Universidade de São Paulo, Faculdade de Medicina, Instituto do Câncer do Estado de São Paulo (ICESP), Serviço de Endoscopia, São Paulo, SP, Brasil
| | - Gustavo Andrade
- Universidade de São Paulo, Faculdade de Medicina, Instituto do Câncer do Estado de São Paulo (ICESP), Serviço de Endoscopia, São Paulo, SP, Brasil
| | - Marcelo Simas
- Universidade de São Paulo, Faculdade de Medicina, Instituto do Câncer do Estado de São Paulo (ICESP), Serviço de Endoscopia, São Paulo, SP, Brasil
| | - Adriana Safatle-Ribeiro
- Universidade de São Paulo, Faculdade de Medicina, Instituto do Câncer do Estado de São Paulo (ICESP), Serviço de Endoscopia, São Paulo, SP, Brasil
| | - Fauze Maluf-Filho
- Universidade de São Paulo, Faculdade de Medicina, Instituto do Câncer do Estado de São Paulo (ICESP), Serviço de Endoscopia, São Paulo, SP, Brasil
| | | | - Ulysses Ribeiro
- Universidade de São Paulo, Faculdade de Medicina, Instituto do Câncer do Estado de São Paulo (ICESP), Serviço de Endoscopia, São Paulo, SP, Brasil
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23
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Kim J, Kim J, Oh EH, Ham NS, Hwang SW, Park SH, Ye BD, Byeon JS, Myung SJ, Yang SK, Hong SM, Yang DH. Anchoring the snare tip is a feasible endoscopic mucosal resection method for small rectal neuroendocrine tumors. Sci Rep 2021; 11:12918. [PMID: 34155319 PMCID: PMC8217176 DOI: 10.1038/s41598-021-92462-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 06/08/2021] [Indexed: 12/15/2022] Open
Abstract
Small rectal neuroendocrine tumors (NETs) can be treated using cap-assisted endoscopic mucosal resection (EMR-C), which requires additional effort to apply a dedicated cap and snare. We aimed to evaluate the feasibility of a simpler modified endoscopic mucosal resection (EMR) technique, so-called anchored snare-tip EMR (ASEMR), for the treatment of small rectal NETs, comparing it with EMR-C. We retrospectively evaluated 45 ASEMR and 41 EMR-C procedures attempted on small suspected or established rectal NETs between July 2015 and May 2020. The mean (SD) lesion size was 5.4 (2.2) mm and 5.2 (1.7) mm in the ASEMR and EMR-C groups, respectively (p = 0.558). The en bloc resection rates of suspected or established rectal NETs were 95.6% (43/45) and 100%, respectively (p = 0.271). The rates of histologic complete resection of rectal NETs were 94.1% (32/34) and 88.2% (30/34), respectively (p = 0.673). The mean procedure time was significantly shorter in the ASEMR group than in the EMR-C group (3.12 [1.97] vs. 4.13 [1.59] min, p = 0.024). Delayed bleeding occurred in 6.7% (3/45) and 2.4% (1/41) of patients, respectively (p = 0.618). In conclusion, ASEMR was less time-consuming than EMR-C, and showed similar efficacy and safety profiles. ASEMR is a feasible treatment option for small rectal NETs.
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Affiliation(s)
- Jeongseok Kim
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, Korea.,Department of Internal Medicine, Keimyung University School of Medicine, Daegu, Korea
| | - Jisup Kim
- Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Eun Hye Oh
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, Korea.,Department of Gastroenterology, Haeundae Paik Hospital, Inje University College of Medicine, Busan, Korea
| | - Nam Seok Ham
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, Korea
| | - Sung Wook Hwang
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, Korea
| | - Sang Hyoung Park
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, Korea
| | - Byong Duk Ye
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, Korea
| | - Jeong-Sik Byeon
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, Korea
| | - Seung-Jae Myung
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, Korea
| | - Suk-Kyun Yang
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, Korea
| | - Seung-Mo Hong
- Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Dong-Hoon Yang
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, Korea.
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Park BS, Cho SH, Son GM, Kim HS, Kim SJ, Park SB, Choi CW, Kim HW, Shin DH. Tumor grade 2 as the independent predictor for lymph node metastasis in 10-20 mm sized rectal neuroendocrine tumor. KOREAN JOURNAL OF CLINICAL ONCOLOGY 2021; 17:37-43. [PMID: 36945210 PMCID: PMC9942737 DOI: 10.14216/kjco.21006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 06/17/2021] [Accepted: 06/23/2021] [Indexed: 11/07/2022]
Abstract
Purpose Rectal neuroendocrine tumors (NETs) <10 mm are endoscopically resected, while those ≥20 mm are treated with radical surgical resection. The choice of treatment for 10-20 mm sized rectal NETs remains controversial. This study aimed to verify factors predicting lymph node metastasis (LNM) of 10-20 mm sized rectal NET and utilize them to decide upon the treatment strategy. Methods Twenty-eight patients with 10-20 mm sized rectal NETs treated at Pusan National University Yangsan Hospital from January 2009 to September 2020 were divided into LNM (+) and LNM (-) groups, and their respective data were analyzed. Results Seven patients (25%) had LNM while 21 patients (75%) did not. Endorectal ultrasound findings showed tumor size was significantly larger in the LNM (+) than in the LNM (-) group (15 mm vs. 10 mm, P=0.018); however, pathologically, there was no significant difference in tumor size (13 mm vs. 11 mm, P=0.109). The mitotic count (P=0.011), Ki-67 index (P=0.008), and proportion of tumor grade 2 patients (5 cases, 71% vs. 1 case, 5%; P=0.001) were significantly higher in the LNM (+) group. In multivariate analysis, tumor grade 2 was the independent factor predicting LNM (odds ratio, 61.32; 95% confidence interval, 3.17-1,188.64; P=0.010). Conclusion Tumor grade 2 was the independent factor predicting LNM in 10-20 mm sized rectal NETs. Therefore, it could be considered as the meaningful factor in determining whether radical resection is necessary.
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Affiliation(s)
- Byung-Soo Park
- Department of Surgery, Pusan National University Yangsan Hospital, Yangsan, Korea
| | - Sung Hwan Cho
- Department of Surgery, Pusan National University Yangsan Hospital, Yangsan, Korea
| | - Gyung Mo Son
- Department of Surgery, Pusan National University Yangsan Hospital, Yangsan, Korea
| | - Hyun Sung Kim
- Department of Surgery, Pusan National University Yangsan Hospital, Yangsan, Korea
| | - Su Jin Kim
- Department of Internal Medicine, Pusan National University Yangsan Hospital, Yangsan, Korea
| | - Su Bum Park
- Department of Internal Medicine, Pusan National University Yangsan Hospital, Yangsan, Korea
| | - Cheol Woong Choi
- Department of Internal Medicine, Pusan National University Yangsan Hospital, Yangsan, Korea
| | - Hyung Wook Kim
- Department of Internal Medicine, Pusan National University Yangsan Hospital, Yangsan, Korea
| | - Dong Hoon Shin
- Department of Pathology, Pusan National University Yangsan Hospital, Yangsan, Korea
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Tanaka S, Saitoh Y, Matsuda T, Igarashi M, Matsumoto T, Iwao Y, Suzuki Y, Nozaki R, Sugai T, Oka S, Itabashi M, Sugihara KI, Tsuruta O, Hirata I, Nishida H, Miwa H, Enomoto N, Shimosegawa T, Koike K. Evidence-based clinical practice guidelines for management of colorectal polyps. J Gastroenterol 2021; 56:323-335. [PMID: 33710392 PMCID: PMC8005396 DOI: 10.1007/s00535-021-01776-1] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 02/27/2021] [Indexed: 02/04/2023]
Abstract
BACKGROUND The Japanese Society of Gastroenterology (JSGE) published ''Daicho Polyp Shinryo Guideline 2014'' in Japanese and a part of this guideline was published in English as "Evidence-based clinical practice guidelines for management of colorectal polyps" in the Journal of Gastroenterology in 2015. A revised version of the Japanese-language guideline was published in 2020, and here we introduce a part of the contents of revised version. METHODS The guideline committee discussed and drew up a series of clinical questions (CQs). Recommendation statements for the CQs were limited to items with multiple therapeutic options. Items with established conclusions that had 100% agreement with previous guidelines (background questions) and items with no (or old) evidence that are topics for future research (future research questions: FRQs) were given descriptions only. To address the CQs and FRQs, PubMed, ICHUSHI, and other sources were searched for relevant articles published in English from 1983 to October 2018 and articles published in Japanese from 1983 to November 2018. The Japan Medical Library Association was also commissioned to search for relevant materials. Manual searches were performed for questions with insufficient online references. RESULTS The professional committee created 18 CQs and statements concerning the current concept and diagnosis/treatment of various colorectal polyps, including their epidemiology, screening, pathophysiology, definition and classification, diagnosis, management, practical treatment, complications, and surveillance after treatment, and other colorectal lesions (submucosal tumors, nonneoplastic polyps, polyposis, hereditary tumors, ulcerative colitis-associated tumors/carcinomas). CONCLUSIONS After evaluation by the moderators, evidence-based clinical practice guidelines for management of colorectal polyps were proposed for 2020. This report addresses the therapeutic related CQs introduced when formulating these guidelines.
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Affiliation(s)
- Shinji Tanaka
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Management of Colorectal Polyps", the Japanese Society of Gastroenterology (JSGE), 6F Shimbashi i-MARK Bldg., 2-6-2 Shimbashi, Minato-ku, Tokyo, 105-0004, Japan.
- Department of Endoscopy, Hiroshima University Hospital, 1-2-3 Minami-ku, KasumiHiroshima, 734-8551, Japan.
| | - Yusuke Saitoh
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Management of Colorectal Polyps", the Japanese Society of Gastroenterology (JSGE), 6F Shimbashi i-MARK Bldg., 2-6-2 Shimbashi, Minato-ku, Tokyo, 105-0004, Japan
| | - Takahisa Matsuda
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Management of Colorectal Polyps", the Japanese Society of Gastroenterology (JSGE), 6F Shimbashi i-MARK Bldg., 2-6-2 Shimbashi, Minato-ku, Tokyo, 105-0004, Japan
| | - Masahiro Igarashi
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Management of Colorectal Polyps", the Japanese Society of Gastroenterology (JSGE), 6F Shimbashi i-MARK Bldg., 2-6-2 Shimbashi, Minato-ku, Tokyo, 105-0004, Japan
| | - Takayuki Matsumoto
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Management of Colorectal Polyps", the Japanese Society of Gastroenterology (JSGE), 6F Shimbashi i-MARK Bldg., 2-6-2 Shimbashi, Minato-ku, Tokyo, 105-0004, Japan
| | - Yasushi Iwao
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Management of Colorectal Polyps", the Japanese Society of Gastroenterology (JSGE), 6F Shimbashi i-MARK Bldg., 2-6-2 Shimbashi, Minato-ku, Tokyo, 105-0004, Japan
| | - Yasumoto Suzuki
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Management of Colorectal Polyps", the Japanese Society of Gastroenterology (JSGE), 6F Shimbashi i-MARK Bldg., 2-6-2 Shimbashi, Minato-ku, Tokyo, 105-0004, Japan
| | - Ryoichi Nozaki
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Management of Colorectal Polyps", the Japanese Society of Gastroenterology (JSGE), 6F Shimbashi i-MARK Bldg., 2-6-2 Shimbashi, Minato-ku, Tokyo, 105-0004, Japan
| | - Tamotsu Sugai
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Management of Colorectal Polyps", the Japanese Society of Gastroenterology (JSGE), 6F Shimbashi i-MARK Bldg., 2-6-2 Shimbashi, Minato-ku, Tokyo, 105-0004, Japan
| | - Shiro Oka
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Management of Colorectal Polyps", the Japanese Society of Gastroenterology (JSGE), 6F Shimbashi i-MARK Bldg., 2-6-2 Shimbashi, Minato-ku, Tokyo, 105-0004, Japan
| | - Michio Itabashi
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Management of Colorectal Polyps", the Japanese Society of Gastroenterology (JSGE), 6F Shimbashi i-MARK Bldg., 2-6-2 Shimbashi, Minato-ku, Tokyo, 105-0004, Japan
| | - Ken-Ichi Sugihara
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Management of Colorectal Polyps", the Japanese Society of Gastroenterology (JSGE), 6F Shimbashi i-MARK Bldg., 2-6-2 Shimbashi, Minato-ku, Tokyo, 105-0004, Japan
| | - Osamu Tsuruta
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Management of Colorectal Polyps", the Japanese Society of Gastroenterology (JSGE), 6F Shimbashi i-MARK Bldg., 2-6-2 Shimbashi, Minato-ku, Tokyo, 105-0004, Japan
| | - Ichiro Hirata
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Management of Colorectal Polyps", the Japanese Society of Gastroenterology (JSGE), 6F Shimbashi i-MARK Bldg., 2-6-2 Shimbashi, Minato-ku, Tokyo, 105-0004, Japan
| | - Hiroshi Nishida
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Management of Colorectal Polyps", the Japanese Society of Gastroenterology (JSGE), 6F Shimbashi i-MARK Bldg., 2-6-2 Shimbashi, Minato-ku, Tokyo, 105-0004, Japan
| | - Hiroto Miwa
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Management of Colorectal Polyps", the Japanese Society of Gastroenterology (JSGE), 6F Shimbashi i-MARK Bldg., 2-6-2 Shimbashi, Minato-ku, Tokyo, 105-0004, Japan
| | - Nobuyuki Enomoto
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Management of Colorectal Polyps", the Japanese Society of Gastroenterology (JSGE), 6F Shimbashi i-MARK Bldg., 2-6-2 Shimbashi, Minato-ku, Tokyo, 105-0004, Japan
| | - Tooru Shimosegawa
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Management of Colorectal Polyps", the Japanese Society of Gastroenterology (JSGE), 6F Shimbashi i-MARK Bldg., 2-6-2 Shimbashi, Minato-ku, Tokyo, 105-0004, Japan
| | - Kazuhiko Koike
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Management of Colorectal Polyps", the Japanese Society of Gastroenterology (JSGE), 6F Shimbashi i-MARK Bldg., 2-6-2 Shimbashi, Minato-ku, Tokyo, 105-0004, Japan
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Hirasawa T, Yamamoto N, Sano T. Is endoscopic resection appropriate for type 3 gastric neuroendocrine tumors? Retrospective multicenter study. Dig Endosc 2021; 33:408-417. [PMID: 32578248 DOI: 10.1111/den.13778] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 06/12/2020] [Accepted: 06/16/2020] [Indexed: 12/15/2022]
Abstract
BACKGROUND Gastrectomy with lymphadenectomy is recommended for type 3 gastric neuroendocrine tumors (G-NETs). This study aimed to identify the risk factors for lymph node metastasis (LNM) arising from G-NETs to assess the suitability of endoscopic resection (ER). METHODS Nationwide clinicopathological data of patients with type 3 G-NETs who underwent surgery or ER were collected. A single pathologist graded the histological tumor specimens. RESULTS Among 176 cases from 53 institutions, 144 were eligible for analysis (90 NET-G1 and 54 NET-G2 grade, 8-mm median-size tumors). Of these, 63 patients had undergone ER (15 with additional surgeries). Histological data regarding LNM were available for 93 surgical patients. LNM was confirmed in 15 (16%) tumors and was correlated with tumor diameter, invasion depth, and tumor grade. LNM was negative in six tumors ≤5 mm, confined to the mucosa or submucosa, with a grade of G1, and without lymphovascular invasion, but the number of cases was too small to propose ER indications. Among 48 patients treated with ER alone, only one developed recurrence; no mortality was observed at follow-up, although many patients were classified with SM2/NET-G2/tumors >5 mm. This suggests that not all LNMs arising from small G-NETs are fatal. CONCLUSION Gastrectomy with lymphadenectomy for type 3 G-NETs is recommended on the basis of LNM. However, ER for type 3 G-NETs ≤10 mm, confined to the mucosa or submucosa, with a grade of G1 has shown excellent survival outcomes despite the risk of LNM, and therefore, could be an alternative treatment option.
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Affiliation(s)
- Toshiaki Hirasawa
- Departments of, Department of, Gastroenterology, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Noriko Yamamoto
- Department of, Pathology, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Takeshi Sano
- Department of, Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
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Stier MW, Chapman CG, Shamah S, Donboli K, Yassan L, Waxman I, Siddiqui UD. Endoscopic resection is more effective than biopsy or EUS to detect residual rectal neuroendocrine tumor. Endosc Int Open 2021; 9:E4-E8. [PMID: 33403229 PMCID: PMC7775810 DOI: 10.1055/a-1300-1017] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Accepted: 10/05/2020] [Indexed: 12/18/2022] Open
Abstract
Background and study aims Rectal neuroendocrine tumors (NETs) are often discovered incidentally and may be misidentified as adenomatous polyps. This can result in a partial resection at the index procedure, and lesions are often referred for staging or evaluation for residual disease at the resection site. The aim of this study was to identify the ideal method to confirm complete excision of small rectal NETs. Patients and methods Data from patients with a previously resected rectal NET referred for follow-up endoscopy or endoscopic ultrasound (EUS) were retrospectively reviewed. Univariate analysis was performed on categorical data using the Chi-squared test. Results Forty-nine patients with rectal NETs were identified by pathology specimens. Of those, 39 underwent follow-up endoscopy or EUS and were included. Baseline characteristics included gender (71 % F, 29 % M), age (57.2 ± 13.4 yrs) lesion size (7.3 ± 4.2 mm) and location. The prior resection site was identified in 37/39 patients who underwent tissue sampling. Residual NET was found histologically in 14/37 lesions. All residual disease was found during salvage endoscopic mucosal resection (EMR) or endoscopic submucosal dissection (ESD) and 43 % had a normal-appearing scar. Every patient undergoing EUS had an unremarkable exam. Initial cold biopsy polypectomy ( P = 0.006), visible lesions ( P = 0.001) and EMR/ESD of the prior resection site ( P = 0.01) correlated with residual NET. Conclusions Localized rectal NETs may be incompletely removed with standard polypectomy. If an advanced resection is not performed initially, repeat endoscopy with salvage EMR or ESD of the scar should be considered. For small rectal NETs, biopsy may miss residual disease when there is no visible lesion and EUS appears to have no benefit.
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Affiliation(s)
- Matthew W. Stier
- University of Chicago Center for Endoscopic Research and Therapeutics (CERT), Chicago, Illinois, United States
| | - Christopher G. Chapman
- University of Chicago Center for Endoscopic Research and Therapeutics (CERT), Chicago, Illinois, United States
| | - Steven Shamah
- University of Chicago Center for Endoscopic Research and Therapeutics (CERT), Chicago, Illinois, United States
| | - Kianoush Donboli
- University of Chicago Center for Endoscopic Research and Therapeutics (CERT), Chicago, Illinois, United States
| | - Lindsay Yassan
- Department of Pathology, the University of Chicago Medicine, Chicago, Illinois, United States
| | - Irving Waxman
- University of Chicago Center for Endoscopic Research and Therapeutics (CERT), Chicago, Illinois, United States
| | - Uzma D. Siddiqui
- University of Chicago Center for Endoscopic Research and Therapeutics (CERT), Chicago, Illinois, United States
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Chromogranin A Expression in Rectal Neuroendocrine Tumors Is Associated With More Aggressive Clinical Behavior and a Poorer Prognosis. Am J Surg Pathol 2020; 44:1496-1505. [PMID: 32735108 DOI: 10.1097/pas.0000000000001526] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Although rectal neuroendocrine tumors (NETs) with an L-cell phenotype and small size are generally less clinically serious, the new 2019 World Health Organization (WHO) classification system has categorized all of these lesions as malignant. Identifying biomarkers of rectal NETs is thus important for stratifying their clinical behavior. Chromogranin A protein expression was assessed in 538 endoscopically or surgically resected rectal NETs and compared with clinicopathologic factors to identify its clinical and prognostic significance. All of the rectal NETs analyzed (100%) were synaptophysin positive, but chromogranin A labeling was only detected in 111 cases (20.6%). Chromogranin A expression in the rectal NETs was more commonly associated with older age (50 y and older; P=0.013), male sex (P=0.002), radical resection (P=0.003), large tumor size (≥1 cm; P=0.038), muscularis propria invasion (P=0.002), lymphovascular (P=0.014) and perineural (P<0.001) invasion, an involved resection margin (P=0.028), and lymph node metastasis (P=0.003). Patients with chromogranin A expression had higher plasma chromogranin A levels (P=0.023) than those without chromogranin A expression during follow-up. The 10-year disease-free survival rate in rectal NET patients with chromogranin A expression (91.5%) was significantly shorter than the negative cases (99.7%) by both univariate (hazard ratio=14.438; 95% confidence interval: 2.911-71.598; P<0.001) and multivariate (hazard ratio=12.099; 95% confidence interval, 2.044-71.608; P=0.006) analyses. In summary, rectal NETs that are positive for chromogranin A are less common than those with synaptophysin expression and show more aggressive clinical behavior. Chromogranin A is therefore a prognostic indicator of higher recurrence risk in patients with endoscopically or surgically resected rectal NETs.
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Hayashi S, Takayama T, Ikarashi M, Hagiwara K, Matsuno Y, Suzuki T. Transanal minimally invasive surgery for rectal neuroendocrine tumors. Surg Endosc 2020; 35:6746-6753. [PMID: 33237462 DOI: 10.1007/s00464-020-08178-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Accepted: 11/15/2020] [Indexed: 02/04/2023]
Abstract
BACKGROUND There is no literature that mainly searched for rectal neuroendocrine tumor (rNET) using transanal minimal invasive surgery (TAMIS). We report our clinical experiences of TAMIS for rectal neuroendocrine tumors to evaluate the feasibility and safety. METHODS Between December 2010 and March 2020, the 25 consecutive patients with rectal neoplasma underwent the TAMIS procedure performed by single laparoscopic surgeon at the two hospitals. Of these, ten patients with rectal neuroendocrine tumors were reviewed retrospectively. The full-thickness excision down to the outer fatty tissues was completed using TAMIS technique. Clinicopathological findings, perioperative and postoperative complications were recorded. RESULTS TAMIS for small rNET was successfully completed in all cases. There were seven cases with a tumor size of less than 10 mm, and three cases with a tumor size between 10 and 15 mm. Six patients underwent the primary tumor excision; the remaining four patients underwent resection for the scar after endoscopic procedure. The median surgical duration was 80.5 (53-124) minutes and the median blood loss was 1 (1-12) ml. All removed tumors in the 6 primary excisions were diagnosed as neuroendocrine tumor G1. The margins of specimens were completely free in all cases. Among the four patients after endoscopic procedure, all had no histological evidence of residual tumor. The median length of hospital stay was 7 days postoperatively. There was no post-operative mortality or severe complication. The median length of observation was 54 months. No recurrence, no local or distant metastasis and no mortality of all patients were observed. CONCLUSIONS TAMIS is safety and feasible procedure for small rNET. Further experience and clinical trials are needed to fully define the advantages, disadvantages, and indications of TAMIS for rNET.
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Affiliation(s)
- Shigeoki Hayashi
- Department of Digestive Surgery, Nihon University School of Medicine, 30-1 Ooyaguchi-kamimachi, Itabashi-ku, Tokyo, 173-8610, Japan.
| | - Tadatoshi Takayama
- Department of Digestive Surgery, Nihon University School of Medicine, 30-1 Ooyaguchi-kamimachi, Itabashi-ku, Tokyo, 173-8610, Japan
| | - Masahito Ikarashi
- Department of Digestive Surgery, Nihon University School of Medicine, 30-1 Ooyaguchi-kamimachi, Itabashi-ku, Tokyo, 173-8610, Japan
| | - Ken Hagiwara
- Department of Digestive Surgery, Nihon University School of Medicine, 30-1 Ooyaguchi-kamimachi, Itabashi-ku, Tokyo, 173-8610, Japan
| | - Yoritaka Matsuno
- Department of Digestive Surgery, Nihon University School of Medicine, 30-1 Ooyaguchi-kamimachi, Itabashi-ku, Tokyo, 173-8610, Japan
| | - Takeki Suzuki
- Department of Surgery, Toride-Kitasouma Medical Association Hospital, 1926 Nonoi, Toride, Ibaraki, 302-0032, Japan
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Lee HS, Moon HS, Kwon IS, Park JH, Kim JS, Kang SH, Lee ES, Kim SH, Sung JK, Lee BS, Jeong HY. Comparison of conventional and modified endoscopic mucosal resection methods for the treatment of rectal neuroendocrine tumors. Surg Endosc 2020; 35:6055-6065. [PMID: 33094828 DOI: 10.1007/s00464-020-08097-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Accepted: 10/13/2020] [Indexed: 12/13/2022]
Abstract
BACKGROUND/AIM Small rectal neuroendocrine tumors (NETs) confined to the submucosa are endoscopically resectable. Because most rectal NETs are submucosal tumors, conventional endoscopic mucosal resection (cEMR) may not result in a complete resection. This study investigated whether modified EMRs, namely endoscopic submucosal resection with ligation (ESMR-L), EMR with precutting (EMR-P), and strip biopsy are superior to cEMR for achieving histologically complete resection (HCR) of rectal NETs. METHODS Medical records of 215 patients who were treated with endoscopic resections for rectal NETs between January 2011 and July 2019 were retrospectively enrolled. Of the patients, 110, 33, 29, and 43 underwent cEMR, ESMR-L, EMR-P, and strip biopsy, respectively. For each method, HCR and en bloc resection rates, procedure times, and complication rates were measured. RESULTS HCR was achieved with cEMR, EMR-P, ESMR-L, and strip biopsies for 74.5%, 90.9%, 93.1%, and 90.7% of cases, respectively. The HCR rate for cEMR was inferior to those of the modified EMRs (p = 0.045 for cEMR vs. EMR-P; p = 0.031 for cEMR vs. ESMR-L; p = 0.027 for cEMR vs. strip biopsy). Among the three modified EMRs, there was no significant difference in achieving HCR (p = 1.000). En bloc resection (p = 0.096) and complication rates (p = 0.071) were not significantly different among the four EMR methods, although EMR-P required the longest procedure time (p = 0.000). CONCLUSIONS All three modified EMRs are superior to cEMR and are equally effective for achieving HCR of rectal NETs.
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Affiliation(s)
- Hee Sung Lee
- Division of Gastroenterology, Department of Internal Medicine, Chungnam National University College of Medicine, Chungnam National University Hospital, 282 Munhwa-ro, Jung-gu, Daejeon, 35015, South Korea
| | - Hee Seok Moon
- Division of Gastroenterology, Department of Internal Medicine, Chungnam National University College of Medicine, Chungnam National University Hospital, 282 Munhwa-ro, Jung-gu, Daejeon, 35015, South Korea.
| | - In Sun Kwon
- Clinical Trials Center, Chungnam National University Hospital, Daejeon, 35015, South Korea
| | - Jae Ho Park
- Division of Gastroenterology, Department of Internal Medicine, Chungnam National University College of Medicine, Chungnam National University Hospital, 282 Munhwa-ro, Jung-gu, Daejeon, 35015, South Korea
| | - Ju Seok Kim
- Division of Gastroenterology, Department of Internal Medicine, Chungnam National University College of Medicine, Chungnam National University Hospital, 282 Munhwa-ro, Jung-gu, Daejeon, 35015, South Korea
| | - Sun Hyung Kang
- Division of Gastroenterology, Department of Internal Medicine, Chungnam National University College of Medicine, Chungnam National University Hospital, 282 Munhwa-ro, Jung-gu, Daejeon, 35015, South Korea
| | - Eaum Seok Lee
- Division of Gastroenterology, Department of Internal Medicine, Chungnam National University College of Medicine, Chungnam National University Hospital, 282 Munhwa-ro, Jung-gu, Daejeon, 35015, South Korea
| | - Seok Hyun Kim
- Division of Gastroenterology, Department of Internal Medicine, Chungnam National University College of Medicine, Chungnam National University Hospital, 282 Munhwa-ro, Jung-gu, Daejeon, 35015, South Korea
| | - Jae Kyu Sung
- Division of Gastroenterology, Department of Internal Medicine, Chungnam National University College of Medicine, Chungnam National University Hospital, 282 Munhwa-ro, Jung-gu, Daejeon, 35015, South Korea
| | - Byung Seok Lee
- Division of Gastroenterology, Department of Internal Medicine, Chungnam National University College of Medicine, Chungnam National University Hospital, 282 Munhwa-ro, Jung-gu, Daejeon, 35015, South Korea
| | - Hyun Yong Jeong
- Division of Gastroenterology, Department of Internal Medicine, Chungnam National University College of Medicine, Chungnam National University Hospital, 282 Munhwa-ro, Jung-gu, Daejeon, 35015, South Korea
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31
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Chida K, Watanabe J, Hirasawa K, Inayama Y, Misumi T, Kunisaki C, Endo I. A novel risk-scoring system for predicting lymph node metastasis of rectal neuroendocrine tumors. Ann Gastroenterol Surg 2020; 4:562-570. [PMID: 33005851 PMCID: PMC7511567 DOI: 10.1002/ags3.12355] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 05/11/2020] [Accepted: 05/14/2020] [Indexed: 01/02/2023] Open
Abstract
AIM Although rectal neuroendocrine tumors (NETs) are considered to be rare low-grade malignancies when lymph node metastasis (LNM) is present, their degree of malignancy is comparable to that of colorectal cancer (CRC). However, it remains unclear as to which patients require radical lymph node dissection. The aim of this study was to elucidate the risk factors for LNM and develop a risk-scoring system for LNM to help determine appropriate therapeutic approaches. METHODS In this study, we examined 103 patients with rectal NETs who underwent local resection (n = 55) or radical resection with LN dissection (n = 48). We evaluated each pathological feature, including the depth of submucosal invasion (SM depth) and tumor budding grade. RESULTS According to our univariate analyses and previous reports, the significant five risk factors for LNM were weighted with point values: 2 points for tumor size ≥ 15 mm and muscularis invasion, and 1 point each for SM depth ≥ 2000 µm, positive lymphovascular invasion, budding grade 3, and vertical margin. The area under the receiver operating curve for the scoring system was 0.899 (95% CI: 0.843-0.955). When a score of 2 was used as the cut-off value, the sensitivity and specificity for the prediction of LNM were 100% and 72.1%, respectively. CONCLUSIONS The risk-scoring system for LNM of rectal NETs showed high diagnostic performance. Using this risk-scoring system, it is possible to predict the risk of LNM and thereby potentially avoid unnecessary surgery. Further prospective external validation studies should be performed. The study was registered in the Japanese Clinical Trials Registry as UMIN000036658.
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Affiliation(s)
- Keigo Chida
- Department of Gastroenterological SurgeryYokohama City University Graduate School of MedicineYokohamaJapan
| | - Jun Watanabe
- Department of SurgeryGastroenterological CenterYokohama City University Medical CenterYokohamaJapan
| | - Kingo Hirasawa
- Division of EndoscopyYokohama City University Medical CenterYokohamaJapan
| | - Yoshiaki Inayama
- Department of PathologyYokohama City University Medical CenterYokohamaJapan
| | - Toshihiro Misumi
- Department of BiostatisticsYokohama City University School of MedicineYokohamaJapan
| | - Chikara Kunisaki
- Department of SurgeryGastroenterological CenterYokohama City University Medical CenterYokohamaJapan
| | - Itaru Endo
- Department of Gastroenterological SurgeryYokohama City University Graduate School of MedicineYokohamaJapan
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Hane Y, Tsuchikawa T, Tanaka K, Nakanishi Y, Asano T, Noji T, Kurashima Y, Ebihara Y, Murakami S, Nakamura T, Okamura K, Takeuchi S, Shichinohe T, Hirano S. Metachronous liver metastases after long-term follow-up of endoscopic resection for rectal neuroendocrine neoplasms: a report of three cases. Surg Case Rep 2020; 6:22. [PMID: 31940115 PMCID: PMC6962411 DOI: 10.1186/s40792-020-0792-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Accepted: 01/10/2020] [Indexed: 11/28/2022] Open
Abstract
Background Rectal neuroendocrine neoplasms (NENs) are rare, but their incidence has increased in recent years. The metastasis rate is low in cases of a tumor diameter < 1 cm or depth of invasion lower than the submucosa; therefore, the European Neuroendocrine Tumor Society (ENETS) and the North American Neuroendocrine Tumor Society (NANETS) consensus guidelines recommend endoscopic resection. Since little has been reported on the long-term prognosis of endoscopic resection for rectal NEN, consensus is lacking regarding the follow-up period after endoscopic resection. Case presentation Here, we report three cases of metachronous liver metastasis after long-term follow-up of endoscopic mucosal resection (EMR) for rectal NEN. The pathological findings indicated a depth lower than the submucosa and complete radical resection in all cases and lymphovascular invasion in only one case. All three cases showed metachronous multiple liver metastases after 9–13 years of follow-up for EMR, despite achieving complete resection and without muscular invasion. Conclusions Metachronous liver metastases may occur after long interval following endoscopic resection; thus, long-term follow-up is necessary after endoscopic resection for rectal NEN.
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Affiliation(s)
- Yuma Hane
- Department of Gastroenterological Surgery II, Division of Surgery, Faculty of Medicine, Hokkaido University, West-7, North-15, Kita-ku, Sapporo, 060-8638, Japan
| | - Takahiro Tsuchikawa
- Department of Gastroenterological Surgery II, Division of Surgery, Faculty of Medicine, Hokkaido University, West-7, North-15, Kita-ku, Sapporo, 060-8638, Japan.
| | - Kimitaka Tanaka
- Department of Gastroenterological Surgery II, Division of Surgery, Faculty of Medicine, Hokkaido University, West-7, North-15, Kita-ku, Sapporo, 060-8638, Japan
| | - Yoshitsugu Nakanishi
- Department of Gastroenterological Surgery II, Division of Surgery, Faculty of Medicine, Hokkaido University, West-7, North-15, Kita-ku, Sapporo, 060-8638, Japan
| | - Toshimichi Asano
- Department of Gastroenterological Surgery II, Division of Surgery, Faculty of Medicine, Hokkaido University, West-7, North-15, Kita-ku, Sapporo, 060-8638, Japan
| | - Takehiro Noji
- Department of Gastroenterological Surgery II, Division of Surgery, Faculty of Medicine, Hokkaido University, West-7, North-15, Kita-ku, Sapporo, 060-8638, Japan
| | - Yo Kurashima
- Department of Gastroenterological Surgery II, Division of Surgery, Faculty of Medicine, Hokkaido University, West-7, North-15, Kita-ku, Sapporo, 060-8638, Japan
| | - Yuma Ebihara
- Department of Gastroenterological Surgery II, Division of Surgery, Faculty of Medicine, Hokkaido University, West-7, North-15, Kita-ku, Sapporo, 060-8638, Japan
| | - Soichi Murakami
- Department of Gastroenterological Surgery II, Division of Surgery, Faculty of Medicine, Hokkaido University, West-7, North-15, Kita-ku, Sapporo, 060-8638, Japan
| | - Toru Nakamura
- Department of Gastroenterological Surgery II, Division of Surgery, Faculty of Medicine, Hokkaido University, West-7, North-15, Kita-ku, Sapporo, 060-8638, Japan
| | - Keisuke Okamura
- Department of Gastroenterological Surgery II, Division of Surgery, Faculty of Medicine, Hokkaido University, West-7, North-15, Kita-ku, Sapporo, 060-8638, Japan
| | - Satoshi Takeuchi
- Department of Medical Oncology, Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Toshiaki Shichinohe
- Department of Gastroenterological Surgery II, Division of Surgery, Faculty of Medicine, Hokkaido University, West-7, North-15, Kita-ku, Sapporo, 060-8638, Japan
| | - Satoshi Hirano
- Department of Gastroenterological Surgery II, Division of Surgery, Faculty of Medicine, Hokkaido University, West-7, North-15, Kita-ku, Sapporo, 060-8638, Japan
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A case of a rectal adenocarcinoma mimicking a neuroendocrine tumor in the background mucosa of amoebic colitis. Clin J Gastroenterol 2020; 13:552-554. [PMID: 31907859 DOI: 10.1007/s12328-019-01088-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Accepted: 12/20/2019] [Indexed: 11/09/2022]
Abstract
A 54-year-old man with diarrhea and hematochezia for 2 months was referred to our department. A total colonoscopy revealed amoebic colitis caused by Entamoeba histolytica. Concurrently, a submucosal tumor-like yellowish hemispheric polypoid lesion was incidentally detected in the rectum. We speculated that the lesion was a NET, which could be cured by endoscopic treatment. However, histopathological assessment of a biopsy specimen unexpectedly revealed a well- or moderately differentiated adenocarcinoma. After treatment of the amoebic colitis, endoscopic ultrasound revealed a low, hetero-echoic, 6-mm-diameter lesion mainly in the submucosal layer. We performed surgical resection because the invasion was estimated to be to the deeper submucosal layer. Histopathological assessment of the surgically resected specimen revealed a focal lesion of a well-differentiated adenocarcinoma in the granulation tissue of the submucosal layer. In cases accompanied by amoebic colitis, a tumor's initial gross type might change. Diagnostic endoscopic resection could be acceptable in such cases.
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Wang R, Zheng-Pywell R, Chen HA, Bibb JA, Chen H, Rose JB. Management of Gastrointestinal Neuroendocrine Tumors. CLINICAL MEDICINE INSIGHTS-ENDOCRINOLOGY AND DIABETES 2019; 12:1179551419884058. [PMID: 31695546 PMCID: PMC6820165 DOI: 10.1177/1179551419884058] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Accepted: 09/30/2019] [Indexed: 12/12/2022]
Abstract
Neuroendocrine neoplasms (NENs) are derived from neuroendocrine cell system and can have benign or malignant characteristics. They are rare tumors, but have been increasing in incidence over the past 40 years. Patients with NENs may develop symptoms due to primary tumor invasion, metastasis, or from secretion of hormonally active tumor substances. Multiple imaging modalities are used for diagnosis and staging, including specialty scans such as 111In pentetreotide (Octreoscan) and 68Gallium-DOTATATE, along with endoscopy, endoscopic ultrasound, and biochemical marker testing. Treatment involves both surgical approach, for both primary and metastatic lesions, as well as medical management for symptom management and disease progression. This article will review the current clinical knowledge regarding the diagnosis, treatment, and prognosis of these fascinating neoplasms and the associated hormonal syndromes.
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Affiliation(s)
- Rongzhi Wang
- Department of Surgery, The University of Alabama at Birmingham, Birmingham, AL, USA
| | - Rui Zheng-Pywell
- Department of Surgery, The University of Alabama at Birmingham, Birmingham, AL, USA
| | - H Alexander Chen
- Department of Surgery, The University of Alabama at Birmingham, Birmingham, AL, USA
| | - James A Bibb
- Department of Surgery, The University of Alabama at Birmingham, Birmingham, AL, USA
| | - Herbert Chen
- Department of Surgery, The University of Alabama at Birmingham, Birmingham, AL, USA
| | - J Bart Rose
- Department of Surgery, The University of Alabama at Birmingham, Birmingham, AL, USA
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de Mestier L, Lorenzo D, Fine C, Cros J, Hentic O, Walter T, Panis Y, Couvelard A, Cadiot G, Ruszniewski P. Endoscopic, transanal, laparoscopic, and transabdominal management of rectal neuroendocrine tumors. Best Pract Res Clin Endocrinol Metab 2019; 33:101293. [PMID: 31326374 DOI: 10.1016/j.beem.2019.101293] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Rectal neuroendocrine tumors (RNET) are rare tumors but their prevalence is constantly increasing due to a prolonged survival and rising incidence related to a growing number of colonoscopies and improved knowledge. Their main prognostic determinant is tumor stage. While most RNET are localized, their management should be tailored depending on the presence or absence of the factors predictive of lymph-node metastases including tumor size, endoscopic aspect, T stage, grade and lymphovascular invasion. Endoscopic ultrasonography is the most relevant technique for locoregional assessment. Low-risk RNET can be treated using advanced endoscopic resection techniques or transanal endoscopic microsurgery, in expert centers because they require technicity and experience. Conversely, radical surgery with lymphadenectomy should be proposed in the presence of any pejorative factor. The long-term evolution of RNET remains to be specified, and prospective studies should be conducted in order to determine the relevance of the current management strategies.
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Affiliation(s)
- Louis de Mestier
- Department of Pancreatology and Gastroenterology, ENETS Centre of Excellence, AP-HP, Beaujon Hospital, Clichy, France; Université de Paris, France; INSERM UMR1149, Paris, France.
| | - Diane Lorenzo
- Department of Pancreatology and Gastroenterology, ENETS Centre of Excellence, AP-HP, Beaujon Hospital, Clichy, France; Université de Paris, France
| | - Caroline Fine
- Department of Digestive Oncology, ENETS Centre of Excellence, Edouard Herriot University Hospital, Lyon, France
| | - Jérôme Cros
- Université de Paris, France; INSERM UMR1149, Paris, France; Department of Pathology, ENETS Centre of Excellence, AP-HP, Bichat/Beaujon Hospital, Clichy, France
| | - Olivia Hentic
- Department of Pancreatology and Gastroenterology, ENETS Centre of Excellence, AP-HP, Beaujon Hospital, Clichy, France
| | - Thomas Walter
- Department of Digestive Oncology, ENETS Centre of Excellence, Edouard Herriot University Hospital, Lyon, France
| | - Yves Panis
- Université de Paris, France; Department of Colorectal Surgery, ENETS Centre of Excellence, AP-HP, Beaujon Hospital, Clichy, France
| | - Anne Couvelard
- Université de Paris, France; INSERM UMR1149, Paris, France; Department of Pathology, ENETS Centre of Excellence, AP-HP, Bichat/Beaujon Hospital, Clichy, France
| | - Guillaume Cadiot
- Department of Hepato-Gastroenterology and Digestive Oncology, Robert Debré Hospital and Reims-Champagne-Ardennes University, Reims, France
| | - Philippe Ruszniewski
- Department of Pancreatology and Gastroenterology, ENETS Centre of Excellence, AP-HP, Beaujon Hospital, Clichy, France; Université de Paris, France; INSERM UMR1149, Paris, France
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Kang HS, Kwon MJ, Kim TH, Han J, Ju YS. Lymphovascular invasion as a prognostic value in small rectal neuroendocrine tumor treated by local excision: A systematic review and meta-analysis. Pathol Res Pract 2019; 215:152642. [PMID: 31585816 DOI: 10.1016/j.prp.2019.152642] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2019] [Revised: 08/26/2019] [Accepted: 09/15/2019] [Indexed: 02/07/2023]
Abstract
Because rectal neuroendocrine tumors (NETs) are usually small-sized despite of malignant potential, endoscopic resection techniques are recommended. It is unclear whether the lymphovascular invasion (LVI) in the endoscopic resected specimens of small rectal NETs should be indicated for completion surgery. We performed a systematic review and meta-analysis for the incidence of LVI in small rectal NETs (≤20 mm) treated by endoscopic resection and its prognostic impacts. We searched the relevant literature published before January 2019. A total of 21 publications including 1816 patients were enrolled. Overall prevalence of LVI in small rectal NETs was 21.8%. Immunohistochemical method significantly increased the detection rate of LVI up to 35.8% compared than H&E staining only (13.2%). Tumor size more than 5 mm was a risk factor for LVI in small rectal NET, whereas tumor grade did not influence the risk. The LVI in the endoscopic resected specimens was a risk factor for subsequent lymph node metastasis. Separately analyzed in detail, the vascular invasion had a stronger impact on lymph node metastasis than the lymphatic invasion. The prognosis of endoscopically treated rectal NET with LVI was excellent with only 0.3% of recurrence rate during the 5-year follow-up period. LVI is highly prevalent and a risk factor for lymph node metastasis in the small rectal NETs. Endoscopically treated small rectal NETs had excellent short-term prognoses despite of LVI. Immediate completion radical surgery is not absolutely necessary for the LVI-positive small rectal NETs. However, long-term follow-up is recommended for any delayed recurrence.
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Affiliation(s)
- Ho Suk Kang
- Division of Gastroenterology, Department of Internal Medicine, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, Gyeonggi-do, Republic of Korea
| | - Mi Jung Kwon
- Department of Pathology, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, Gyeonggi-do, Republic of Korea.
| | - Tae-Hwan Kim
- Department of Orthopaedic Surgery, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, Gyeonggi-do, Republic of Korea
| | - Junhee Han
- Department of Statistics, Hallym University, Chuncheon, Republic of Korea
| | - Young-Su Ju
- Department of Occupational and Environmental Medicine, Hallym University Sacred Heart Hospital, Anyang, Gyeonggi-do, Republic of Korea
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Resectability of Rectal Neuroendocrine Tumors Using Endoscopic Mucosal Resection with a Ligation Band Device and Endoscopic Submucosal Dissection. Gastroenterol Res Pract 2019; 2019:8425157. [PMID: 31687016 PMCID: PMC6811798 DOI: 10.1155/2019/8425157] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 07/08/2019] [Accepted: 08/01/2019] [Indexed: 02/06/2023] Open
Abstract
Background Rectal neuroendocrine tumors (NETs) < 10 mm in diameter, limited to the submucosa without local or distant metastasis, can be treated endoscopically. Endoscopic mucosal resection with a ligation band device (EMR-L) and endoscopic submucosal dissection (ESD) have been employed to resect rectal NETs. We evaluated and compared the clinical outcomes of EMR-L and ESD for endoscopic resection of rectal NETs G1 < 10 mm in diameter. Methods We conducted a retrospective study of 82 rectal NETs in 82 patients who underwent either EMR-L or ESD. Therapeutic outcomes (en bloc resection and complete resection rates), procedure time, and procedure-related adverse events were evaluated. Additionally, we measured the distance of the lateral and vertical margins from the border of the tumor in pathologic specimens and compared the resectability between EMR-L and ESD. Results Sixty-six lesions were treated using EMR-L and 16 using ESD. En bloc resection was achieved in all patients. The complete resection rate with EMR-L was significantly higher than that with ESD (95.5% vs.75.0%, p = 0.025). The prevalence of vertical margin involvement was significantly higher in the ESD group than in the EMR-L group (12.5% vs. 0%, p = 0.036), and ESD was more time consuming than EMR-L (24.21 ± 12.18 vs. 7.05 ± 4.53 min, p < 0.001). The lateral and vertical margins were more distant in the EMR-L group than in the ESD group (lateral margin distance, 1661 ± 849 vs. 1514 ± 948 μm; vertical margin distance, 277 ± 308 vs. 202 ± 171 μm). Conclusions EMR-L is more favorable for small rectal NETs with respect to therapeutic outcomes, procedure time, and technical difficulties. Additionally, EMR-L enables achievement of sufficient vertical margin distances.
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38
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Cha JH, Jung DH, Kim JH, Youn YH, Park H, Park JJ, Um YJ, Park SJ, Cheon JH, Kim TI, Kim WH, Lee HJ. Long-term outcomes according to additional treatments after endoscopic resection for rectal small neuroendocrine tumors. Sci Rep 2019; 9:4911. [PMID: 30894571 PMCID: PMC6426846 DOI: 10.1038/s41598-019-40668-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Accepted: 02/19/2019] [Indexed: 12/21/2022] Open
Abstract
The present study aimed to investigate treatment strategies determining additional treatment after endoscopic resection (ER) of rectal neuroendocrine tumor (NET)s and long-term outcomes of endoscopically resected rectal NETs. We analyzed a total of 322 patients medical records of patients who underwent ER for rectal NETs. Rectal NETs initially resected as polyps and treated with conventional endoscopic mucosal resection (EMR) were observed more frequently in the non-curative group (P = 0.041 and P = 0.012, respectively). After ER, only 44 of the 142 patients (31.0%) who did not meet the criteria for curative resection received additional salvage treatment. In multivariate analysis, lesions diagnosed via biopsies (OR, 0.096; P = 0.002) or suspected as NETs initially (OR, 0.04; P = 0.001) were less likely to undergo additional treatment. Positive lymphovascular invasion (OR 61.971; P < 0.001), positive (OR 75.993; P < 0.001), or indeterminate (OR 13.203; P = 0.001) resection margins were more likely to undergo additional treatment. Although lymph node metastasis was found in 6 patients, none experienced local or metastatic tumor recurrence during the median follow-up of 40.49 months. Long-term outcomes after ER for rectal NETs were excellent. The prognosis showed favorable outcomes regardless of whether patients receive additional salvage treatments.
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Affiliation(s)
- Jae Hwang Cha
- Department of Internal Medicine, Dong-A University College of Medicine, Busan, 49201, Korea
| | - Da Hyun Jung
- Department of Internal Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, 06273, Korea. .,Department of Internal Medicine, CHA Bundang Medical Center, CHA University, Seongnam, 13496, Korea.
| | - Jie-Hyun Kim
- Department of Internal Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, 06273, Korea
| | - Young Hoon Youn
- Department of Internal Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, 06273, Korea
| | - Hyojin Park
- Department of Internal Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, 06273, Korea
| | - Jae Jun Park
- Department of Internal Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, 06273, Korea
| | - Yoo Jin Um
- Department of Internal Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, 06273, Korea
| | - Soo Jung Park
- Department of Internal Medicine, Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, 03722, Korea
| | - Jae Hee Cheon
- Department of Internal Medicine, Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, 03722, Korea
| | - Tae Il Kim
- Department of Internal Medicine, Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, 03722, Korea
| | - Won Ho Kim
- Department of Internal Medicine, Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, 03722, Korea
| | - Hyun Jung Lee
- Department of Internal Medicine, Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, 03722, Korea. .,Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, 03080, Korea.
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Honjo K, Kazumasa K, Ro H, Mizukoshi K, Kawai M, Ishiyama S, Takahashi M, Tomiki Y, Sakamoto K. Rectal neuroendocrine tumours treated using endoscopic submucosal dissection with myectomy - a video vignette. Colorectal Dis 2018; 20:1055-1056. [PMID: 30216625 DOI: 10.1111/codi.14418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Accepted: 08/30/2018] [Indexed: 02/08/2023]
Affiliation(s)
- K Honjo
- Department of Coloproctological Surgery, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - K Kazumasa
- Department of Coloproctological Surgery, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - H Ro
- Department of Coloproctological Surgery, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - K Mizukoshi
- Department of Coloproctological Surgery, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - M Kawai
- Department of Coloproctological Surgery, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - S Ishiyama
- Department of Coloproctological Surgery, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - M Takahashi
- Department of Coloproctological Surgery, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - Y Tomiki
- Department of Coloproctological Surgery, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - K Sakamoto
- Department of Coloproctological Surgery, Juntendo University Faculty of Medicine, Tokyo, Japan
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40
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Dong J, Tu JF, Chen YW. Clinical and pathological characteristics of 35 cases of rectal neuroendocrine neoplasms. Shijie Huaren Xiaohua Zazhi 2018; 26:1205-1211. [DOI: 10.11569/wcjd.v26.i19.1205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM To analyze the clinical, endoscopic, and pathological characteristics of rectal neuroendocrine neoplasms (NENs), and to explore their correlation.
METHODS The clinical, endoscopic, and pathological features of 35 cases of rectal NENs were analyzed retrospectively. The correlation of data was analyzed by Spearman correlation analysis using SPSS software.
RESULTS Most rectal NENs were located 4-10 cm from the anus. Tumor diameter, chromogranin A (CgA) positivity, and depth of invasion were significantly correlated with lymph node metastasis. Tumor diameter, CgA positivity, and World Health Organization (WHO) pathological grade were significantly correlated with liver metastasis.
CONCLUSION Rectal NENs lack specific clinical manifestations. Tumor diameter and depth of invasion affect treatment options and prognosis. WHO pathological grading and immunohistochemistry have great value in predicting lymph node and liver metastasis. CgA-positive patients are recommended to undergo early abdominal CT examination, abdominal ultrasound, and superficial lymph node ultrasound to assess lymph nodes and liver metastasis as early as possible.
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Affiliation(s)
- Jie Dong
- Department of Gastroenterology, Zhejiang Provincial People's Hospital (People's Hospital of Hangzhou Medical College), Hangzhou 310000, Zhejiang Province, China
| | - Jiang-Feng Tu
- Department of Gastroenterology, Zhejiang Provincial People's Hospital (People's Hospital of Hangzhou Medical College), Hangzhou 310000, Zhejiang Province, China
| | - You-Wei Chen
- Department of Gastroenterology, Zhejiang Provincial People's Hospital (People's Hospital of Hangzhou Medical College), Hangzhou 310000, Zhejiang Province, China
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Kim J, Kim JH, Lee JY, Chun J, Im JP, Kim JS. Clinical outcomes of endoscopic mucosal resection for rectal neuroendocrine tumor. BMC Gastroenterol 2018; 18:77. [PMID: 29866049 PMCID: PMC5987588 DOI: 10.1186/s12876-018-0806-y] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2017] [Accepted: 05/23/2018] [Indexed: 02/08/2023] Open
Abstract
Background The incidence of rectal neuroendocrine tumors (NETs) is rapidly increasing because of the frequent use of endoscopic screening for colorectal cancers. However, the clinical outcomes of endoscopic resection for rectal NETs are still unclear. The aim of this study was to assess the rates of histologically complete resection (H-CR) and recurrence after endoscopic mucosal resection (EMR) for rectal NETs. Methods A retrospective analysis was performed on patients who underwent EMR for rectal NETs between January 2002 and March 2015 at Seoul National University Hospital. Primary outcomes were H-CR and recurrence rates after endoscopic resection. H-CR was defined as the absence of tumor invasion in the lateral and deep margins of resected specimens. Results Among 277 patients, 243 (88%) were treated with conventional EMR, 23 (8%) with EMR using a dual-channel endoscope, and 11 (4%) with EMR after precutting. The median tumor size was 4.96 mm (range, 1–22) in diameter, and 264 (95%) lesions were confined to the mucosa and submucosal layer. The en-bloc resection rate was 99% and all patients achieved endoscopically complete resection. The H-CR rates were 75, 74, and 73% for conventional EMR, EMR using a dual-channel endoscope, and EMR after precutting, respectively. Multivariate analysis showed that H-CR was associated with tumor size regardless of endoscopic treatment modalities (p = 0.023). Of the 277 patients, 183 (66%) underwent at least 1 endoscopic follow-up. Three (2%) of these 183 patients had tumor recurrence, which was diagnosed at a median of 62.5 months (range 19–98) after endoscopic resection. There was 1 case of disease-related death, which occurred 167 months after endoscopic treatment because of bone marrow failure that resulted from tumor metastasis. Conclusions Although the en-bloc resection rate was 99% in rectal NETs, H-CR rates were 72–74% for various EMR procedures. H-CR may be associated with tumor size regardless of endoscopic treatment modalities.
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Affiliation(s)
- Jihye Kim
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, 101 Daehak-ro, Chongno-gu, Seoul, 03080, Republic of Korea
| | - Jee Hyun Kim
- Department of Internal Medicine, Seoul National University Boramae Hospital, Seoul National University College of Medicine, Seoul, 07061, Republic of Korea
| | - Joo Young Lee
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, 101 Daehak-ro, Chongno-gu, Seoul, 03080, Republic of Korea
| | - Jaeyoung Chun
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, 101 Daehak-ro, Chongno-gu, Seoul, 03080, Republic of Korea
| | - Jong Pil Im
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, 101 Daehak-ro, Chongno-gu, Seoul, 03080, Republic of Korea
| | - Joo Sung Kim
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, 101 Daehak-ro, Chongno-gu, Seoul, 03080, Republic of Korea.
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Goretzki PE, Mogl MT, Akca A, Pratschke J. Curative and palliative surgery in patients with neuroendocrine tumors of the gastro-entero-pancreatic (GEP) tract. Rev Endocr Metab Disord 2018; 19:169-178. [PMID: 30280290 DOI: 10.1007/s11154-018-9469-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The incidence of neuroendocrine tumors (NET) increases with age. Lately, the diagnosis of NET was mainly caused by early detection of small NET (<1 cm) in the rectum and stomach, which are depicted by chance during routine and prophylactic endoscopy. Also in patients with large and metastatic pancreatic and intestinal tumors thorough pathologic investigation with use of different immunohistologic markers discovers more neuroendocrine tumors with low differentiation grade (G2-G3) and more neuroendocrine carcinomas (NEC), nowadays, than in former times. While gastric and rectal NET are discovered as small (<1 cm in diameter) and mainly highly differentiated tumors, demonstrating lymph node metastases in less than 10% of the patients, the majority of pancreatic and small bowel NET have already metastasized at the time of diagnosis. This is of clinical importance, since tumor stage and differentiation grade not only influence prognosis but also surgical procedure and may define whether a combination of surgery with systemic biologic therapy, chemotherapy or local cytoreductive procedures may be used. The indication for surgery and the preferred surgical procedure will have to consider personal risk factors of each patient (i.e. general health, additional illnesses, etc.) and tumor specific factors (i.e. tumor stage, grade of differentiation, functional activity, mass and variety of loco regional as well as distant metastases etc.). Together they define, whether radical curative or only palliative surgery can be applied. Altogether surgery is the only cure for locally advanced NET and helps to increase quality of life and overall survival in many patients with metastatic neuroendocrine tumors. The question of cure versus palliative therapy sometimes only can be answered with time, however. Many different aspects and various questions concerning the indication and extent of surgery and the best therapeutic procedure are still unanswered. Therefore, a close multidisciplinary cooperation of colleagues involved in biochemical and localization diagnostics and those active in various treatment areas is warranted to search for the optimal strategy in each individual patient. How far genetic screening impacts survival remains to be seen. Since surgeons do have a central role in the treatment of NET patients, they have to understand the need for integration into such an interdisciplinary team.
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Affiliation(s)
- Peter E Goretzki
- Department of Surgery, Campus Charité Mitte | Campus Virchow-Klinikum, Augustenburger Platz 1, 13353, Berlin, Germany.
- Leiter Arbeitsbereich endokrine Chirurgie, Chirurgische Klinik, Campus Charité Mitte | Campus Virchow-Klinikum, Charité - Universitätsmedizin Berlin, Augustenburger Platz 1, 13353, Berlin, Germany.
| | - Martina T Mogl
- Department of Surgery, Campus Charité Mitte | Campus Virchow-Klinikum, Augustenburger Platz 1, 13353, Berlin, Germany
| | - Aycan Akca
- Surgical Clinic 1, Lukaskrankenhaus Neuss, Preußenstrasse 84, 41456, Neuss, Germany
| | - Johann Pratschke
- Department of Surgery, Campus Charité Mitte | Campus Virchow-Klinikum, Augustenburger Platz 1, 13353, Berlin, Germany
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Hsu WH, Tsai CY, Tsai YJ, Sun MS. Analysis of different endoscopic methods for resection of rectal neuroendocrine tumors: A 10-year experience at a secondary care hospital. ADVANCES IN DIGESTIVE MEDICINE 2018. [DOI: 10.1002/aid2.13068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Wen-Hsin Hsu
- Center for Digestive Endoscopy; Yuan's General Hospital; Kaohsiung City Taiwan
| | - Ching-Yang Tsai
- Center for Digestive Endoscopy; Yuan's General Hospital; Kaohsiung City Taiwan
| | - Yu-Jou Tsai
- Center for Digestive Endoscopy; Yuan's General Hospital; Kaohsiung City Taiwan
| | - Meng-Shun Sun
- Center for Digestive Endoscopy; Yuan's General Hospital; Kaohsiung City Taiwan
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Abstract
A 39-year-old woman underwent a preoperative diagnostic colonoscopy for cervical cancer. A 3-mm neuroendocrine tumor (NET) was incidentally detected in the rectum. The NET was observed via 7 colonoscopies over 10 years while giving priority to treating the cervical cancer. Complete cervical cancer remission was confirmed at the 10-year follow-up examination; therefore, endoscopic treatment for the NET was subsequently performed. The NET showed almost no change in either size or morphology over the 10-year period. This case illustrates the possible very-slow progression of a small NET, suggesting its benign behavior.
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Affiliation(s)
| | | | - Kinichi Hotta
- Division of Endoscopy, Shizuoka Cancer Center, Japan
| | - Sayo Ito
- Division of Endoscopy, Shizuoka Cancer Center, Japan
| | | | - Hiroyuki Ono
- Division of Endoscopy, Shizuoka Cancer Center, Japan
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Zhang J, Liu M, Li H, Chen J, Su H, Zheng J, Lin G, Lei X. Comparison of endoscopic therapies for rectal carcinoid tumors: Endoscopic mucosal resection with circumferential incision versus endoscopic submucosal dissection. Clin Res Hepatol Gastroenterol 2018; 42:24-30. [PMID: 28750769 DOI: 10.1016/j.clinre.2017.06.007] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Revised: 05/16/2017] [Accepted: 06/13/2017] [Indexed: 02/04/2023]
Abstract
BACKGROUND AND OBJECTIVE Although various endoscopic resection techniques have been established for rectal carcinoid tumors, there remains controversy regarding the best endoscopic treatment modality for these tumors. This study aimed to evaluate and compare the therapeutic efficacy and safety of EMR with circumferential incision (EMR-CI) and endoscopic submucosal dissection (ESD) for endoscopic resection of rectal carcinoid tumors. METHODS From March 2012 to June 2016, 66 rectal carcinoid tumors in 66 patients were resected by using EMR-CI (n=30) or ESD (n=36). The rates of both en bloc resection and complete resection, procedure time, procedure-related complications, and local or metastatic recurrence were analyzed retrospectively. RESULTS The en bloc resection rate was 96.7% (29/30) and 100% (36/36) for EMR-CI and ESD groups, respectively, and the difference was not statistically significant (P=0.455). The complete resection rate of the ESD group was 97.2% (35/36) and significantly higher than 76.7% (23/30) of the EMR-CI group (P=0.030). The mean procedure time of the ESD group was 20.44±6.64minutes, which was significantly longer than that of the EMR-CI group at 8.47±3.40minutes (P<0.001). The complication rates for ESD and EMR-CI did not differ significantly (0% for EMR-CI vs. 2.8% for ESD, P=1.000). No local or metastatic recurrence was found in either group during the follow-up period. CONCLUSION This study suggested that ESD may be a safe, effective, and feasible endoscopic technique for removing rectal carcinoid tumors. ESD showed a similar safety profile and superior efficacy to EMR-CI.
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Affiliation(s)
- Jinyan Zhang
- Department of Gastroenterology, the First Affiliated Hospital of Xiamen University, No. 55 Zhenhai Road, 361003 Xiamen, Fujian Province, China.
| | - Ming Liu
- Department of Gastroenterology, the First Affiliated Hospital of Xiamen University, No. 55 Zhenhai Road, 361003 Xiamen, Fujian Province, China
| | - Hua Li
- Department of Gastroenterology, the First Affiliated Hospital of Xiamen University, No. 55 Zhenhai Road, 361003 Xiamen, Fujian Province, China
| | - Jinzhong Chen
- Department of Gastroenterology, the First Affiliated Hospital of Xiamen University, No. 55 Zhenhai Road, 361003 Xiamen, Fujian Province, China
| | - Hong Su
- Department of Gastroenterology, the First Affiliated Hospital of Xiamen University, No. 55 Zhenhai Road, 361003 Xiamen, Fujian Province, China
| | - Jianwei Zheng
- Department of Gastroenterology, the First Affiliated Hospital of Xiamen University, No. 55 Zhenhai Road, 361003 Xiamen, Fujian Province, China
| | - Guanxia Lin
- Department of Gastroenterology, the First Affiliated Hospital of Xiamen University, No. 55 Zhenhai Road, 361003 Xiamen, Fujian Province, China
| | - Xiaoyi Lei
- Department of Gastroenterology, the First Affiliated Hospital of Xiamen University, No. 55 Zhenhai Road, 361003 Xiamen, Fujian Province, China
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Chablaney S, Zator ZA, Kumta NA. Diagnosis and Management of Rectal Neuroendocrine Tumors. Clin Endosc 2017; 50:530-536. [PMID: 29207857 PMCID: PMC5719921 DOI: 10.5946/ce.2017.134] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Revised: 11/15/2017] [Accepted: 11/19/2017] [Indexed: 12/12/2022] Open
Abstract
The incidence of rectal neuroendocrine tumors (NETs) has increased by almost ten-fold over the past 30 years. There has been a heightened awareness of the malignant potential of rectal NETs. Fortunately, many rectal NETs are discovered at earlier stages due to colon cancer screening programs. Endoscopic ultrasound is useful in assessing both residual tumor burden after retrospective diagnosis and tumor characteristics to help guide subsequent management. Current guidelines suggest endoscopic resection of rectal NETs ≤10 mm as a safe therapeutic option given their low risk of metastasis. Although a number of endoscopic interventions exist, the best technique for resection has not been identified. Endoscopic submucosal dissection (ESD) has high complete and en-bloc resection rates, but also an increased risk of complications including perforation. In addition, ESD is only performed at tertiary centers by experienced advanced endoscopists. Endoscopic mucosal resection has been shown to have variable complete resection rates, but modifications to the technique such as the addition of band ligation have improved outcomes. Prospective studies are needed to further compare the available endoscopic interventions, and to elucidate the most appropriate course of management of rectal NETs.
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Affiliation(s)
- Shreya Chablaney
- Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Zachary A Zator
- Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Nikhil A Kumta
- Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
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Abstract
AIMS Neuroendocrine gastroenteropancreatic tumors are infrequently found neoplasms. Our objective was to analyze the survival rates for all sites that they occur in by studying different variables. MATERIALS AND METHODS A retrospective study was carried out using records for a 7-year period from January 1, 2008 to December 31, 2014 on neuroendocrine gastroenteropancreatic tumors patients diagnosed at the Pontevedra-Salnés Hospital Complex. The variables used were as follows: age at diagnosis, tumor size, presence or absence of metastases at diagnosis, cell proliferation index, Ki-67 of each tumor, treatments received, postdiagnosis survival time, existence or not of tumor progression, and time from diagnosis to progression and from diagnosis to mortality. In relation to treatments, the information recorded was whether the treatment was endoscopic, surgical, or pharmacological. RESULTS Ninety-three neuroendocrine tumors made up a ratio of 4.42 cases per 100,000 inhabitants per annum. The median patient follow-up time was 44 months. The overall 5-year survival rate for patients who were followed up for a minimum of 60 months (49 patients) was 65.3%. The progression-free survival was 75.6% for 41 patients who were followed up for a minimum of 60 months. The survival rate for patients receiving endoscopic treatment was 100%, as there was no patient mortality recorded for those treated by endoscopic resection during the follow-up period. CONCLUSION Pancreatic neuroendocrine tumors may be managed conservatively in elderly patients by either monitoring them with imaging studies or treating them with somatostatin analogs. In the case of digestive tract tumors (stomach, duodenum, and rectum) that meet the criteria for endoscopic resection, this is a reliable and safe technique in the long term.
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Kitagawa Y, Ikebe D, Suzuki T, Hara T, Itami M, Yamaguchi T. Frequent Presence of Lymphovascular Invasion in Small Rectal Neuroendocrine Tumors on Immunohistochemical Analysis. Digestion 2017; 95:16-21. [PMID: 28052288 DOI: 10.1159/000452357] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Rectal neuroendocrine tumors (RNETs) have become common in recent years and are good candidates for endoscopic resection (ER). To achieve clear resection margins, more advanced techniques such as endoscopic submucosal dissection, endoscopic submucosal resection with a ligation device, and cap-assisted endoscopic mucosal resection are available for ER. After ER, lymphovascular invasion (LVI) is regarded as an important predictor of nodal metastasis. Previous studies have shown that small RNETs with LVI were uncommon (0-8.3%). However, using immunohistochemical analysis, a recent study revealed the frequent occurrence of LVI in small RNETs in a systematic manner (46.7%). There is a possibility that the actual detection rate of LVI in small RNETs is not always evaluated accurately because of the limited detection sensitivity of conventional hematoxylin-eosin staining. In addition, the correlation between LVI detected using immunohistochemical analysis and the development of metastasis remains unclear. Further prospective studies are required to clarify the role of LVI detected using immunohistochemical analysis.
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Honjo K, Kure K, Ichikawa R, Ro H, Takahashi R, Niwa K, Ishiyama S, Sugimoto K, Kamiyama H, Takahashi M, Kojima Y, Goto M, Tomiki Y, Sakamoto K, Fukumura Y, Yao T. Two Cases of Rectal Neuroendocrine Tumor Resection Combined with Dissection of the Circular Muscle Layer Using the Endoscopic Submucosal Dissection Technique. Case Rep Gastroenterol 2016; 10:693-700. [PMID: 27990103 PMCID: PMC5156890 DOI: 10.1159/000452758] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Accepted: 10/17/2016] [Indexed: 12/27/2022] Open
Abstract
Generally, lesions of rectal neuroendocrine tumors (NETs) 10 mm or smaller are less malignant and are indicated for endoscopic therapy. However, the vertical margin may remain positive after conventional endoscopic mucosal resection (EMR) because NETs develop in a way similar to submucosal tumors (SMTs). The usefulness of EMR with a ligation device, which is modified EMR, and endoscopic submucosal dissection (ESD) was reported, but no standard treatment has been established. We encountered 2 patients in whom rectal NETs were completely resected by combined dissection and resection of the circular muscle layer using the ESD technique. Case 1 was an 8-mm NET of the lower rectum. Case 2 was NET of the lower rectum treated with additional resection for a positive vertical margin after EMR. In both cases, the circular muscle layer was dissected applying the conventional ESD technique, followed by en bloc resection while conserving the longitudinal muscle layer. No problems occurred in the postoperative course in either case. Rectal NETs are observed in the lower rectum in many cases, and it is less likely that intestinal perforation by endoscopic therapy causes peritonitis. The method employed in these cases, namely combined dissection and resection of the circular muscle layer using the ESD technique, can be performed relatively safely, and it is possible to ensure negativity of the vertical margin. In addition, it may also be useful for additional treatment of cases with a positive vertical margin after EMR.
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Affiliation(s)
- Kumpei Honjo
- Department of Coloproctological Surgery, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - Kazumasa Kure
- Department of Coloproctological Surgery, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - Ryosuke Ichikawa
- Department of Coloproctological Surgery, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - Hisashi Ro
- Department of Coloproctological Surgery, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - Rina Takahashi
- Department of Coloproctological Surgery, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - Koichiro Niwa
- Department of Coloproctological Surgery, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - Shun Ishiyama
- Department of Coloproctological Surgery, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - Kiichi Sugimoto
- Department of Coloproctological Surgery, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - Hirohiko Kamiyama
- Department of Coloproctological Surgery, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - Makoto Takahashi
- Department of Coloproctological Surgery, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - Yutaka Kojima
- Department of Coloproctological Surgery, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - Michitoshi Goto
- Department of Coloproctological Surgery, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - Yuichi Tomiki
- Department of Coloproctological Surgery, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - Kazuhiro Sakamoto
- Department of Coloproctological Surgery, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - Yuki Fukumura
- Department of Human Pathology, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - Takashi Yao
- Department of Human Pathology, Juntendo University Faculty of Medicine, Tokyo, Japan
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Kwon MJ, Kang HS, Soh JS, Lim H, Kim JH, Park CK, Park HR, Nam ES. Lymphovascular invasion in more than one-quarter of small rectal neuroendocrine tumors. World J Gastroenterol 2016; 22:9400-9410. [PMID: 27895428 PMCID: PMC5107704 DOI: 10.3748/wjg.v22.i42.9400] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2016] [Revised: 09/10/2016] [Accepted: 10/10/2016] [Indexed: 02/06/2023] Open
Abstract
AIM To identify the frequency, clinicopathological risk factors, and prognostic significance of lymphovascular invasion (LVI) in endoscopically resected small rectal neuroendocrine tumors (NETs).
METHODS Between June 2005 and December 2015, 104 cases of endoscopically resected small (≤ 1 cm) rectal NET specimens at Hallym University Sacred Heart Hospital in Korea were retrospectively evaluated. We compared the detected rate of LVI in small rectal NET specimens by two methods: hematoxylin and eosin (H&E) and ancillary immunohistochemical staining (D2-40 and Elastica van Gieson); in addition, LVI detection rate difference between endoscopic procedures were also evaluated. Patient characteristics, prognosis and endoscopic resection results were reviewed by medical charts.
RESULTS We observed LVI rates of 25.0% and 27.9% through H&E and ancillary immunohistochemical staining. The concordance rate between H&E and ancillary studies was 81.7% for detection of LVI, which showed statistically strong agreement between two methods (κ = 0.531, P < 0.001). Two endoscopic methods were studied, including endoscopic submucosal resection with a ligation device and endoscopic submucosal dissection, and no statistically significant difference in the LVI detection rate was detected between the two (26.3% and 26.8%, P = 0.955). LVI was associated with large tumor size (> 5 mm, P = 0.007), tumor grade 2 (P = 0.006). Among those factors, tumor grade 2 was the only independent predictive factor for the presence of LVI (HR = 4.195, 95%CI: 1.321-12.692, P = 0.015). No recurrence was observed over 28.8 mo regardless of the presence of LVI.
CONCLUSION LVI may be present in a high percentage of small rectal NETs, which may not be associated with short-term prognosis.
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