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Shintakuya R, Uemura K, Sumiyoshi T, Okada K, Baba K, Harada T, Murakami Y, Serikawa M, Ishii Y, Arihiro K, Takahashi S. Optimal Lymphadenectomy in Patients with Well-Differentiated Nonfunctioning Pancreatic Neuroendocrine Neoplasms. J Clin Med 2023; 12:6778. [PMID: 37959242 PMCID: PMC10647402 DOI: 10.3390/jcm12216778] [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: 09/30/2023] [Revised: 10/23/2023] [Accepted: 10/25/2023] [Indexed: 11/15/2023] Open
Abstract
This study aimed to evaluate the optimal extent of lymphadenectomy in patients with nonfunctioning pancreatic neuroendocrine neoplasms. We retrospectively analyzed the clinicopathological data of patients with nonfunctioning pancreatic neuroendocrine neoplasms who underwent surgical resection. We investigated the frequency of metastases at each lymph node station according to tumor location and analyzed the factors contributing to poor overall survival (OS) and disease-free survival (DFS). Overall, data of 84 patients were analyzed. Among patients with pancreatic head tumors, metastases at stations 8, 13, and 17 were found in one (3.1%), four (12.5%), and three (9.3%) patients, respectively. However, none of the other stations showed metastases. For pancreatic body and tail tumors, metastases only at station 11 were found in two (5.1%) patients. Additionally, multivariate DFS and OS analyses showed that lymph node metastasis was the only independent prognostic factor. In conclusion, lymph node metastasis near the primary tumor was the only independent factor of poor prognosis in patients with nonfunctioning pancreatic neuroendocrine neoplasms after undergoing curative surgery. Peri-pancreatic lymphadenectomy might be recommended for nonfunctioning pancreatic neuroendocrine neoplasms.
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Affiliation(s)
- Ryuta Shintakuya
- Department of Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima 739-8526, Japan
| | - Kenichiro Uemura
- Department of Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima 739-8526, Japan
| | - Tatsuaki Sumiyoshi
- Department of Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima 739-8526, Japan
| | - Kenjiro Okada
- Department of Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima 739-8526, Japan
| | - Kenta Baba
- Department of Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima 739-8526, Japan
| | - Takumi Harada
- Department of Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima 739-8526, Japan
| | - Yoshiaki Murakami
- Department of Advanced Medicine, Hiroshima University, Hiroshima 739-8526, Japan
| | - Masahiro Serikawa
- Department of Gastroenterology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima 739-8526, Japan
| | - Yasutaka Ishii
- Department of Gastroenterology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima 739-8526, Japan
| | - Koji Arihiro
- Department of Anatomical Pathology, Hiroshima University, Hiroshima 739-8526, Japan
| | - Shinya Takahashi
- Department of Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima 739-8526, Japan
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2
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Nakao Y, Hayashi H, Yamashita YI, Takashi O, Matsumura K, Uemura N, Kitamura F, Itoyama R, Yusa T, Taki K, Miyata T, Higashi T, Nakagawa S, Okabe H, Imai K, Baba H. Risk factors for lymph node metastasis in patients with pancreatic neuroendocrine neoplasms. World J Clin Oncol 2022; 13:520-528. [PMID: 35949434 PMCID: PMC9244965 DOI: 10.5306/wjco.v13.i6.520] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Revised: 10/24/2021] [Accepted: 05/23/2022] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Although PNENs generally have a better prognosis than pancreatic cancers, some PNENs display malignant behavior including lymph node (LN) metastasis. Complete tumor resection can be the only potentially curative treatment for patients with resectable PNENs. However, the indications for LN dissection are still controversial. Over the last decade, minimally invasive surgery such as laparoscopic pancreatic surgery (LPS) has been increasingly performed for pancreatic tumors including PNENs.
AIM To investigate the risk factors for LN metastasis in PNENs and to select appropriate patients for limited surgery by LPS.
METHODS From April 2001 to December 2019, 92 patients underwent pancreatic resection for PNENs at Kumamoto University Hospital. Finally, 82 patients were enrolled in this study. Using perioperative factors, we examined the predictive factors for LN metastasis in PNENs.
RESULTS Among the 82 patients, the percentage of LN metastasis according to the pathological findings was 12% (10/82 cases). The median tumor size was 12 mm (range: 5-90 mm). The median tumor size in the LN-positive group (37 mm) was significantly larger than that in the LN-negative group (12 mm) (P = 0.0001). Multivariate analyses revealed that larger tumor size (≥ 20 mm) was an independent risk factor for LN metastasis (odds ratio 16.8, P = 0.0062). In patients with small tumors (≤ 10 mm), LN metastasis was not found.
CONCLUSION Larger tumor size (≥ 20 mm) is an independent risk factor for LN metastasis in PNENs. In smaller PNENs (≤ 10 mm), we may be able to choose limited surgery without LN dissection.
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Affiliation(s)
- Yosuke Nakao
- Department of Gastroenterological Surgery, Kumamoto University, Kumamoto 860-8556, Japan
| | - Hiromitsu Hayashi
- Department of Gastroenterological Surgery, Kumamoto University, Kumamoto 860-8556, Japan
| | - Yo-ichi Yamashita
- Department of Gastroenterological Surgery, Kumamoto University, Kumamoto 860-8556, Japan
| | - Ofuchi Takashi
- Department of Gastroenterological Surgery, Kumamoto University, Kumamoto 860-8556, Japan
| | - Kazuki Matsumura
- Department of Gastroenterological Surgery, Kumamoto University, Kumamoto 860-8556, Japan
| | - Norio Uemura
- Department of Gastroenterological Surgery, Kumamoto University, Kumamoto 860-8556, Japan
| | - Fumimasa Kitamura
- Department of Gastroenterological Surgery, Kumamoto University, Kumamoto 860-8556, Japan
| | - Rumi Itoyama
- Department of Gastroenterological Surgery, Kumamoto University, Kumamoto 860-8556, Japan
| | - Toshihiko Yusa
- Department of Gastroenterological Surgery, Kumamoto University, Kumamoto 860-8556, Japan
| | - Katsunobu Taki
- Department of Gastroenterological Surgery, Kumamoto University, Kumamoto 860-8556, Japan
| | - Tatsunori Miyata
- Department of Gastroenterological Surgery, Kumamoto University, Kumamoto 860-8556, Japan
| | - Takaaki Higashi
- Department of Gastroenterological Surgery, Kumamoto University, Kumamoto 860-8556, Japan
| | - Shigeki Nakagawa
- Department of Gastroenterological Surgery, Kumamoto University, Kumamoto 860-8556, Japan
| | - Hirohisa Okabe
- Department of Gastroenterological Surgery, Kumamoto University, Kumamoto 860-8556, Japan
| | - Katsunori Imai
- Department of Gastroenterological Surgery, Kumamoto University, Kumamoto 860-8556, Japan
| | - Hideo Baba
- Department of Gastroenterological Surgery, Kumamoto University, Kumamoto 860-8556, Japan
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3
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Gudmundsdottir H, Pery R, Graham RP, Thiels CA, Warner SG, Smoot RL, Truty MJ, Kendrick ML, Halfdanarson TR, Habermann EB, Nagorney DM, Cleary SP. Safety and Outcomes of Combined Pancreatic and Hepatic Resections for Metastatic Pancreatic Neuroendocrine Tumors. Ann Surg Oncol 2022; 29:6949-6957. [PMID: 35731358 PMCID: PMC9492589 DOI: 10.1245/s10434-022-12029-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 06/02/2022] [Indexed: 11/18/2022]
Abstract
Background Approximately 40–50% of patients with pancreatic neuroendocrine tumors (pNETs) initially present with distant metastases. Little is known about the outcomes of patients undergoing combined pancreatic and hepatic resections for this indication. Methods Patients who underwent hepatectomy for metastatic pNETs at Mayo Clinic Rochester from 2000 to 2020 were retrospectively reviewed. Major pancreatectomy was defined as pancreaticoduodenectomy or total pancreatectomy, and major hepatectomy as right hepatectomy or trisegmentectomy. Characteristics and outcomes of patients who underwent pancreatectomy with simultaneous hepatectomy were compared with those of patients who underwent isolated hepatectomy (with or without prior history of pancreatectomy). Results 205 patients who underwent hepatectomy for metastatic pNETs were identified: 131 underwent pancreatectomy with simultaneous hepatectomy and 74 underwent isolated hepatectomy. Among patients undergoing simultaneous hepatectomy, 89 patients underwent minor pancreatectomy with minor hepatectomy, 11 patients underwent major pancreatectomy with minor hepatectomy, 30 patients underwent minor pancreatectomy with major hepatectomy, and 1 patient underwent major pancreatectomy with major hepatectomy. Patients undergoing simultaneous hepatectomy had more numerous liver lesions (10 or more lesions in 54% vs. 34%, p = 0.008), but the groups were otherwise similar. Rates of any major complications (31% versus 24%, p = 0.43), hepatectomy-specific complications such as bile leak, hemorrhage, and liver failure (0.8–7.6% vs. 1.4–12%, p = 0.30–0.99), and 90-day mortality (1.5% vs. 2.7%, p = 0.62) were similar between the two groups. 5-year overall survival was 64% after combined resections and 65% after isolated hepatectomy (p = 0.93). Conclusion For patients with metastatic pNETs, combined pancreatic and hepatic resections can be performed with acceptable morbidity and mortality in selected patients at high-volume institutions.
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Affiliation(s)
- Hallbera Gudmundsdottir
- Department of Surgery, Mayo Clinic, Rochester, Minnesota, USA.,Robert D. and Patricia E. Kern Center for the Science of Health Care Delivery, Mayo Clinic, Rochester, Minnesota, USA
| | - Ron Pery
- Department of Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Rondell P Graham
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota, USA
| | | | | | - Rory L Smoot
- Department of Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Mark J Truty
- Department of Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | | | | | - Elizabeth B Habermann
- Robert D. and Patricia E. Kern Center for the Science of Health Care Delivery, Mayo Clinic, Rochester, Minnesota, USA
| | | | - Sean P Cleary
- Department of Surgery, Mayo Clinic, Rochester, Minnesota, USA.
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Minczeles NS, van Eijck CHJ, van Gils MJ, van Velthuysen MLF, Nieveen van Dijkum EJM, Feelders RA, de Herder WW, Brabander T, Hofland J. Induction therapy with 177Lu-DOTATATE procures long-term survival in locally advanced or oligometastatic pancreatic neuroendocrine neoplasm patients. Eur J Nucl Med Mol Imaging 2022; 49:3203-3214. [PMID: 35230492 PMCID: PMC9250460 DOI: 10.1007/s00259-022-05734-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 02/13/2022] [Indexed: 02/06/2023]
Abstract
PURPOSE Peptide receptor radionuclide therapy (PRRT) with 177Lu-DOTATATE induces objective response in up to 57% of pancreatic neuroendocrine neoplasms (panNENs). Therefore, PRRT may comprise a downstaging option for panNEN patients who are not eligible for upfront curative surgery or are at high risk for recurrence. The aim of this study was to assess the potency of induction PRRT for locally advanced panNENs and to evaluate the effect of surgery after PRRT on overall survival (OS). METHODS Retrospective cohort study of panNEN patients treated with induction 177Lu-DOTATATE. RESULTS After PRRT, 26 out of 49 patients underwent pancreatic surgery with curative intent (PRRT + surgery). Partial objective response was obtained in 62% of the PRRT + surgery group versus 26% of the patients not undergoing panNEN surgery (PRRT-only group, p = 0.02). Downstaging in tumour-vessel interface was observed in 38% of all patients with at least one involved vessel. Median OS was 14.7 years (95% CI 5.9-23.6) for the PRRT + surgery group compared to 5.5 years (95% CI 4.5-6.5) for the PRRT-only group (p = 0.003). In the Cox proportional hazards analysis, surgery was not significantly associated with OS after propensity score adjustment with cumulative activity, performance status, tumour size after PRRT, and tumour grade. Median progression-free survival was 5.3 years (95% CI 2.4-8.1) for the PRRT + surgery group and 3.0 years (95% CI 1.6-4.4) for the PRRT-only group (p = 0.02). CONCLUSION Early administration of PRRT followed by surgery is associated with favourable long-term outcomes in patients with locally advanced or oligometastatic panNEN and can be considered for selected patients with vascular involvement and/or increased risk of recurrence.
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Affiliation(s)
- Noémie S Minczeles
- Department of Internal Medicine, Section of Endocrinology, Erasmus MC and Erasmus MC Cancer Centre, Dr. Molewaterplein 40, 3015 GD, Rotterdam, The Netherlands. .,Department of Radiology & Nuclear Medicine, Erasmus MC, Rotterdam, The Netherlands.
| | | | - Marjon J van Gils
- Department of Radiology & Nuclear Medicine, Erasmus MC, Rotterdam, The Netherlands
| | | | - Els J M Nieveen van Dijkum
- Department of Surgery, Cancer Centre Amsterdam, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Richard A Feelders
- Department of Internal Medicine, Section of Endocrinology, Erasmus MC and Erasmus MC Cancer Centre, Dr. Molewaterplein 40, 3015 GD, Rotterdam, The Netherlands
| | - Wouter W de Herder
- Department of Internal Medicine, Section of Endocrinology, Erasmus MC and Erasmus MC Cancer Centre, Dr. Molewaterplein 40, 3015 GD, Rotterdam, The Netherlands
| | - Tessa Brabander
- Department of Radiology & Nuclear Medicine, Erasmus MC, Rotterdam, The Netherlands
| | - Johannes Hofland
- Department of Internal Medicine, Section of Endocrinology, Erasmus MC and Erasmus MC Cancer Centre, Dr. Molewaterplein 40, 3015 GD, Rotterdam, The Netherlands
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5
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Broadbent R, Wheatley R, Stajer S, Jacobs T, Lamarca A, Hubner RA, Valle JW, Amir E, McNamara MG. Prognostic factors for relapse in resected gastroenteropancreatic neuroendocrine neoplasms: A systematic review and meta-analysis. Cancer Treat Rev 2021; 101:102299. [PMID: 34662810 DOI: 10.1016/j.ctrv.2021.102299] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 09/02/2021] [Accepted: 09/05/2021] [Indexed: 11/16/2022]
Abstract
BACKGROUND Gastroenteropancreatic neoplasms (GEP-NENs)can potentially be cured through surgical resection, but only 42-57% achieve 5-year disease-free survival.There is a lack of consensus regarding the factorsassociated withrelapse followingresection ofGEP-NENs. METHODS Asystematic review identified studies reporting factors associated with relapse in patients with GEP-NENs following resection of a primary tumour. Meta-analysis was performed to identify the factors prognostic for relapse-free survival (RFS)oroverall survival (OS). RESULTS 63 studies comprising 13,715 patients were included; 56 studies reported on pancreatic NENs (12,418 patients), 24 reported on patients with grade 1-2 tumours (4,735 patients). Median follow-up was 44.2 months, median RFS was 32 months. Pooling of multivariable analyses of GEP-NENs (all sites and grades) found the following factors predicted worse RFS (all p values < 0.05): vascular resection performed, metastatic disease resected, grade 2 disease, grade 3 disease, tumour size > 20 mm, R1 resection, microvascular invasion, perineural invasion, Ki-67 > 5% and any lymph node positivity. In a subgroup of studies comprising exclusively of grade 1-2 GEP-NENs, R1 resection, perineural invasion, grade 2 disease, any lymph node positivity and tumour size > 20 mm predicted worse RFS (all p values < 0.05). Few OSdata were available for pooling; in univariableanalysis(entire cohort), grade 2 predicted worse OS (p = 0.007), whileR1 resectiondid not (p = 0.14). CONCLUSIONS The factors prognostic for worse RFS following resection of a GEP-NEN identified in this meta-analysis could be included in post-curative treatment surveillance clinical guidelines and inform the stratification and inclusion criteria of future adjuvant trials.
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Affiliation(s)
- Rachel Broadbent
- University of Manchester, Division of Cancer Sciences, Manchester M20 4BX, UK; Department of Medical Oncology, The Christie NHS Foundation Trust, Manchester M20 4BX, UK
| | - Roseanna Wheatley
- University of Manchester, Division of Cancer Sciences, Manchester M20 4BX, UK; Department of Medical Oncology, The Christie NHS Foundation Trust, Manchester M20 4BX, UK
| | - Sabrina Stajer
- Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre and Department of Medicine, University of Toronto, Toronto, ON, Canada
| | - Timothy Jacobs
- Department of Medical Oncology, The Christie NHS Foundation Trust, Manchester M20 4BX, UK
| | - Angela Lamarca
- University of Manchester, Division of Cancer Sciences, Manchester M20 4BX, UK; Department of Medical Oncology, The Christie NHS Foundation Trust, Manchester M20 4BX, UK
| | - Richard A Hubner
- University of Manchester, Division of Cancer Sciences, Manchester M20 4BX, UK; Department of Medical Oncology, The Christie NHS Foundation Trust, Manchester M20 4BX, UK
| | - Juan W Valle
- University of Manchester, Division of Cancer Sciences, Manchester M20 4BX, UK; Department of Medical Oncology, The Christie NHS Foundation Trust, Manchester M20 4BX, UK
| | - Eitan Amir
- Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre and Department of Medicine, University of Toronto, Toronto, ON, Canada
| | - Mairéad G McNamara
- University of Manchester, Division of Cancer Sciences, Manchester M20 4BX, UK; Department of Medical Oncology, The Christie NHS Foundation Trust, Manchester M20 4BX, UK.
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6
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Chen C, Rui Z, Yuhan W, Yongjie Z, Yinghe Q, Ning Y, Tianqiang S, Jianying L, Jiangtao L, Xianhai M, Shengping L, Shubin S, Zhiqiang C, Zhaohui T, Zhimin G. Optimal Lymph Node Staging System in Evaluating Prognosis of Gallbladder Carcinoma: A Multi-institutional Study. Ann Surg Oncol 2021; 28:8142-8151. [PMID: 34532819 DOI: 10.1245/s10434-021-10749-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 07/24/2021] [Indexed: 12/22/2022]
Abstract
BACKGROUND Lymph node (LN) involvement is a critical prognostic factor in patients with gallbladder carcinoma (GBC). Controversy exists regarding optimal categorization of nodal metastasis status, including anatomical location of positive nodes (AJCC 7th N staging), number of metastatic lymph nodes (NMLN), log odds of metastatic LNs (LODDS), and lymph node ratio (LNR). METHODS Patients who underwent curative-intent resection for GBC from six Chinese tertiary hospitals between 2008 and 2013 were analyzed retrospectively. The relative discriminative abilities of the different LN staging systems were assessed by different models including the tree-augmented naïve Bayesian (TAN) model, Cox proportional hazards regression model, and binary logistic regression model. RESULTS A total of 226 patients were involved in this cohort. Based on the TAN model and composite importance measures, the most important factor affecting the prognosis in the different LN staging systems was NMLN. Among the four TAN models which were built with 4 metastatic LN markers and baseline variables, the accuracy of the NMLN-based prognostic model was 88.15%, higher than 7th N staging (86.44%), LNR (87.34%), and LODDS (85.19%). The Cox model based on NMLN (C-index: 0.763, AIC: 1371.62) had a higher fitness than the others (7th N staging C-index: 0.756, AIC: 1375.51; LNR C-index: 0.759, AIC: 1378.82; LODDS C-index 0.748, AIC: 1390.99). The AUCs of different staging binary logistic regression models were NMLN (0.872), LNR (0.872), 7th N staging (0.869) and LODDS (0.856), respectively. CONCLUSIONS NMLN was the optimal LN staging system in evaluating prognosis of GBC.
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Affiliation(s)
- Chen Chen
- Department of Hepatobiliary Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Zhang Rui
- Department of Hepatobiliary Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Wu Yuhan
- Department of Industrial Engineering, School of Mechanical Engineering, Northwestern Polytechnical University, Xi'an, China
| | - Zhang Yongjie
- Department of Biliary Surgery, Eastern Hepatobiliary Surgery Hospital, Affiliated to Naval Medical University, Shanghai, China
| | - Qiu Yinghe
- Department of Biliary Surgery, Eastern Hepatobiliary Surgery Hospital, Affiliated to Naval Medical University, Shanghai, China
| | - Yang Ning
- Department of Biliary Surgery, Eastern Hepatobiliary Surgery Hospital, Affiliated to Naval Medical University, Shanghai, China
| | - Song Tianqiang
- Department of Hepatobiliary Oncology, Tianjin Medical University Cancer Hospital, Tianjin, China
| | - Lou Jianying
- Department of Hepatobiliary and Pancreatic Surgery, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Li Jiangtao
- Department of Hepatobiliary and Pancreatic Surgery, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Mao Xianhai
- Department of Hepatobiliary Surgery, Hunan Provincial People's Hospital, Changsha, China
| | - Li Shengping
- Department of Hepatobiliary Oncology, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Si Shubin
- Department of Industrial Engineering, School of Mechanical Engineering, Northwestern Polytechnical University, Xi'an, China
| | - Cai Zhiqiang
- Department of Industrial Engineering, School of Mechanical Engineering, Northwestern Polytechnical University, Xi'an, China
| | - Tang Zhaohui
- Department of General Surgery, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China.
| | - Geng Zhimin
- Department of Hepatobiliary Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.
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7
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Lindner K, Binte D, Hoeppner J, Wellner UF, Schulte DM, Schmid SM, Luley K, Buchmann I, Tharun L, Keck T, Gebauer J, Kulemann B. Resection of Non-Functional Pancreatic Neuroendocrine Neoplasms-A Single-Center Retrospective Outcome Analysis. ACTA ACUST UNITED AC 2021; 28:3071-3080. [PMID: 34436034 PMCID: PMC8395435 DOI: 10.3390/curroncol28040268] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 08/07/2021] [Accepted: 08/08/2021] [Indexed: 01/08/2023]
Abstract
Surgery remains the only curative treatment of pancreatic neuroendocrine neoplasms (pNEN). Here, we report the outcome after surgery for non-functional pNEN at a European Neuroendocrine Tumor Society (ENETS) center in Germany between 2000 and 2019; cases were analyzed for surgical (Clavien–Dindo classification; CDc) and oncological outcomes. Forty-nine patients (tumor grading G1 n = 25, G2 n = 22, G3 n = 2), with a median age of 56 years, were included. Severe complications (CDc ≥ grade 3b) occurred in 11 patients (22.4%) and type B/C pancreatic fistulas (POPFs) occurred in 5 patients (10.2%); in-hospital mortality was 2% (n = 1). Six of seven patients with tumor recurrence (14.3%) had G2 tumors in the pancreatic body/tail. The median survival was 5.7 years (68 months; [1–228 months]). Neither the occurrence (p = 0.683) nor the severity of complications had an influence on the relapse behavior (p = 0.086). This also applied for a POPF (≥B, p = 0.609). G2 pNEN patients (n = 22) with and without tumor recurrence had similar median tumor sizes (4 cm and 3.9 cm, respectively). Five of the six relapsed G2 patients (83.3%) had tumor-positive lymph nodes (N+); all G2 pNEN patients with recurrence had initially been treated with distal pancreatic resection. Pancreatic resections for pNEN are safe but associated with relevant postoperative morbidity. Future studies are needed to evaluate suitable resection strategies for G2 pNEN.
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Affiliation(s)
- Kirsten Lindner
- Department of Surgery, University Medical Center of Schleswig-Holstein-Campus Lübeck, Ratzeburger Allee 160, 23538 Lübeck, Germany; (K.L.); (D.B.); (J.H.); (U.F.W.); (T.K.)
| | - Daniel Binte
- Department of Surgery, University Medical Center of Schleswig-Holstein-Campus Lübeck, Ratzeburger Allee 160, 23538 Lübeck, Germany; (K.L.); (D.B.); (J.H.); (U.F.W.); (T.K.)
| | - Jens Hoeppner
- Department of Surgery, University Medical Center of Schleswig-Holstein-Campus Lübeck, Ratzeburger Allee 160, 23538 Lübeck, Germany; (K.L.); (D.B.); (J.H.); (U.F.W.); (T.K.)
| | - Ulrich F. Wellner
- Department of Surgery, University Medical Center of Schleswig-Holstein-Campus Lübeck, Ratzeburger Allee 160, 23538 Lübeck, Germany; (K.L.); (D.B.); (J.H.); (U.F.W.); (T.K.)
| | - Dominik M. Schulte
- Division of Endocrinology, Diabetology and Clinical Nutrition, Department of Internal Medicine I, University Medical Center Schleswig-Holstein-Campus Kiel, 23538 Lübeck, Germany;
| | - Sebastian M. Schmid
- Institute for Endocrinology and Diabetes, University of Lübeck, Ratzeburger Allee 160, 23538 Lübeck, Germany; (S.M.S.); (J.G.)
| | - Kim Luley
- Clinic for Hematology and Oncology, University Hospital Schleswig-Holstein-Campus Lübeck, 23538 Lübeck, Germany;
| | - Inga Buchmann
- Department of Radiology and Nuclear Medicine, University of Lübeck, Ratzeburger Alle 160, 23538 Lübeck, Germany;
| | - Lars Tharun
- Institute of Pathology, University Medical Center of Schleswig-Holstein-Campus Lübeck, Ratzeburger Allee 160, 23538 Lübeck, Germany;
| | - Tobias Keck
- Department of Surgery, University Medical Center of Schleswig-Holstein-Campus Lübeck, Ratzeburger Allee 160, 23538 Lübeck, Germany; (K.L.); (D.B.); (J.H.); (U.F.W.); (T.K.)
| | - Judith Gebauer
- Institute for Endocrinology and Diabetes, University of Lübeck, Ratzeburger Allee 160, 23538 Lübeck, Germany; (S.M.S.); (J.G.)
| | - Birte Kulemann
- Department of Surgery, University Medical Center of Schleswig-Holstein-Campus Lübeck, Ratzeburger Allee 160, 23538 Lübeck, Germany; (K.L.); (D.B.); (J.H.); (U.F.W.); (T.K.)
- Faculty of Medicine, University of Freiburg, Hugstetter Str. 55, 79106 Freiburg, Germany
- Correspondence:
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8
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Kato T, Kudo A, Kinowaki Y, Ishikawa Y, Watanabe S, Akahoshi K, Ogawa K, Ono H, Ban D, Tanaka S, Tanabe M. A novel classification of portal venous tumor invasion to predict residual tumor status after surgery in patients with pancreatic neuroendocrine neoplasms. J Cancer Res Clin Oncol 2021; 148:931-941. [PMID: 33983461 DOI: 10.1007/s00432-021-03660-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Accepted: 05/04/2021] [Indexed: 01/02/2023]
Abstract
PURPOSE To elucidate whether portal venous tumor invasion (PVTI) is a prognostic factor for patients with pancreatic neuroendocrine neoplasms (Pan-NENs). METHODS From 2002 to 2019, 240 patients with Pan-NEN were included to examine prognostic factors. PVTI based on computed tomography (CT) images are classified into four types: no PVTI (Vp0/1), PVTI not invading the superior mesenteric vein (Vp2), PVTI invading the superior mesenteric vein or portal vein (Vp3), and PVTI invading the portal bifurcation (Vp4). RESULTS Simultaneous liver metastases (SLM) determined the overall survival (OS) in 240 patients. The 5-year OS rates with and without SLM were 46% and 92%, respectively (P < 0.001). PVTIs were observed in 56 of the 240 patients (23%). Among such patients, 39, 11, and 6 had Vp2, Vp3, and Vp4, respectively. The 5-year OS rates with and without PVTI were 62% and 82%, respectively (P < 0.001). Severity of PVTI did not decide PFS and OS after R0/1 resection. There was significant difference in the prognoses between Vp0/1 and Vp2-4. In 161 patients without SLM, 21 had PVTI (13%). According to a multivariate analysis, PVTI and Ki-67 index were independent prognostic factors for progression-free survival (PFS) in patients without SLM. The 5-year PFS rates with and without PVTI were 18% and 77%, respectively (P < 0.001). The 5-year OS rates with and without PVTI were 76% and 95%, respectively (P = 0.02). PVTI was associated with tumor functionality, high serum NSE, and high Ki-67 index. CONCLUSIONS PVTI may be a predictor for postoperative recurrence.
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Affiliation(s)
- Tomotaka Kato
- Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Atsushi Kudo
- Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan.
| | - Yuko Kinowaki
- Department of Comprehensive Pathology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yoshiya Ishikawa
- Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Shuichi Watanabe
- Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Keiichi Akahoshi
- Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Kosuke Ogawa
- Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Hiroaki Ono
- Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Daisuke Ban
- Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Shinji Tanaka
- Department of Molecular Oncology, Graduate School of Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Minoru Tanabe
- Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
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9
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Tong Z, Wang L, Shi W, Zeng Y, Zhang H, Liu L, Zheng Y, Chen C, Xia W, Fang W, Zhao P. Clonal Evolution Dynamics in Primary and Metastatic Lesions of Pancreatic Neuroendocrine Neoplasms. Front Med (Lausanne) 2021; 8:620988. [PMID: 34026777 PMCID: PMC8131504 DOI: 10.3389/fmed.2021.620988] [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] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Accepted: 04/06/2021] [Indexed: 02/06/2023] Open
Abstract
Background: Data on inter-tumoral heterogeneity and clonal evolution of pancreatic neuroendocrine neoplasms (panNENs) with liver metastasis are limited. The aim of this study was to explore different patterns of clonal evolution of pancreatic neuroendocrine neoplasms with liver metastasis and the possible distinctive signaling pathways involved between G2 neuroendocrine tumors (NETs) and neuroendocrine carcinomas (NECs). Methods: Tumor tissues of five patients (10 samples) with pancreatic neuroendocrine neoplasms with synchronous liver metastasis were analyzed using next-generation sequencing. PyClone, Gene Ontology, and Reactome pathway enrichment analysis were also applied. Results: Mutated genes varied in individuals, reflecting the inter-tumoral heterogeneity of panNENs. The distribution of subclones varied during tumor metastasis, and different clonal evolution patterns were revealed between NETs and NECs. Gene Ontology and Reactome analyses revealed that in both NETs and NECs, signaling pathways and biological processes shared similarities and differences in the primary and metastatic lesions. In addition, the signaling pathway features were different between NETs and NECs. In the primary lesions, epigenetic changes and post-transcriptional modifications participated in NETs, while FGFR signaling, EGFR signaling, and NTRK2 signaling were largely involved in NECs. Although DNA repair and TP53 regulation were both involved in the metastatic lesions, most of the signaling pathways and biological processes disrupted by the mutated genes were different. Conclusions: Our study revealed spatial inter-tumoral heterogeneity and temporal clonal evolution in PanNENs, providing potential therapeutic targets for further prospective clinical trials.
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Affiliation(s)
- Zhou Tong
- Department of Medical Oncology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Lin Wang
- Zhejiang Provincial Key Laboratory of Pancreatic Disease, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | | | | | - Hangyu Zhang
- Department of Medical Oncology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Lulu Liu
- Department of Medical Oncology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yi Zheng
- Department of Medical Oncology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Chunlei Chen
- State Key Laboratory for Diagnosis and Treatment of Infectious Disease, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Weiliang Xia
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Weijia Fang
- Department of Medical Oncology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Zhejiang Provincial Key Laboratory of Pancreatic Disease, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Peng Zhao
- Department of Medical Oncology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
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10
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Fusai GK, Tamburrino D, Partelli S, Lykoudis P, Pipan P, Di Salvo F, Beghdadi N, Dokmak S, Wiese D, Landoni L, Nessi C, Busch ORC, Napoli N, Jang JY, Kwon W, Del Chiaro M, Scandavini C, Abu-Awwad M, Armstrong T, Hilal MA, Allen PJ, Javed A, Kjellman M, Sauvanet A, Bartsch DK, Bassi C, van Dijkum EJMN, Besselink MG, Boggi U, Kim SW, He J, Wolfgang CL, Falconi M. Portal vein resection during pancreaticoduodenectomy for pancreatic neuroendocrine tumors. An international multicenter comparative study. Surgery 2021; 169:1093-1101. [PMID: 33357999 DOI: 10.1016/j.surg.2020.11.015] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 10/18/2020] [Accepted: 11/02/2020] [Indexed: 12/21/2022]
Abstract
BACKGROUND The role of portal vein resection for pancreatic cancer is well established but not for pancreatic neuroendocrine neoplasms. Evidence from studies providing information on long-term outcome after venous resection in pancreatic neuroendocrine neoplasms patients is lacking. METHODS This is a multicenter retrospective cohort study comparing pancreaticoduodenectomy with vein resection with standard pancreaticoduodenectomy in patients with pancreatic neuroendocrine neoplasms. The primary endpoint was to evaluate the long-term survival in both groups. Progression-free survival and overall survival were calculated using the method of Kaplan and Meier, but a propensity score-matched cohort analysis was subsequently performed to remove selection bias and improve homogeneity. The secondary outcome was Clavien-Dindo ≥3. RESULTS Sixty-one (11%) patients underwent pancreaticoduodenectomy with vein resection and 480 patients pancreaticoduodenectomy. Five (1%) perioperative deaths were recorded in the pancreaticoduodenectomy group, and postoperative clinically relevant morbidity rates were similar in the 2 groups (pancreaticoduodenectomy with vein resection 48% vs pancreaticoduodenectomy 33%). In the initial survival analysis, pancreaticoduodenectomy with vein resection was associated with worse 3-year progression-free survival (48% pancreaticoduodenectomy with vein resection vs 83% pancreaticoduodenectomy; P < .01) and 5-year overall survival (67% pancreaticoduodenectomy with vein resection vs 91% pancreaticoduodenectomy). After propensity score matching, no significant difference was found in both 3-year progression-free survival (49% pancreaticoduodenectomy with vein resection vs 59% pancreaticoduodenectomy; P = .14) and 5-year overall survival (71% pancreaticoduodenectomy with vein resection vs 69% pancreaticoduodenectomy; P = .98). CONCLUSION This study demonstrates no significant difference in perioperative risk with a similar overall survival between pancreaticoduodenectomy and pancreaticoduodenectomy with vein resection. Tumor involvement of the superior mesenteric/portal vein axis should not preclude surgical resection in patients with locally advanced pancreatic neuroendocrine neoplasms.
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Affiliation(s)
- Giuseppe K Fusai
- Department of HPB and Liver Transplant Surgery, Royal Free Hospital, London, United Kingdom
| | - Domenico Tamburrino
- Pancreatic Surgery Unit, Vita-Salute University, San Raffaele Hospital, Milan, Italy.
| | - Stefano Partelli
- Pancreatic Surgery Unit, Vita-Salute University, San Raffaele Hospital, Milan, Italy
| | - Panagis Lykoudis
- Department of HPB and Liver Transplant Surgery, Royal Free Hospital, London, United Kingdom
| | - Peter Pipan
- Department of HPB and Liver Transplant Surgery, Royal Free Hospital, London, United Kingdom
| | - Francesca Di Salvo
- Pancreatic Surgery Unit, Vita-Salute University, San Raffaele Hospital, Milan, Italy
| | - Nassiba Beghdadi
- Department of Hepato-Pancreato-Biliary Surgery, Pôle des Maladies de l'Appareil Digestif, Université de Paris-Paris Diderot, Beaujon Hospital, Clichy, France
| | - Safi Dokmak
- Department of Hepato-Pancreato-Biliary Surgery, Pôle des Maladies de l'Appareil Digestif, Université de Paris-Paris Diderot, Beaujon Hospital, Clichy, France
| | - Dominik Wiese
- Department of Visceral, Thoracic, and Vascular Surgery, Philipps University, Marburg, Germany
| | - Luca Landoni
- Unit of General and Pancreatic Surgery, University and Hospital Trust of Verona, Italy
| | - Chiara Nessi
- Unit of General and Pancreatic Surgery, University and Hospital Trust of Verona, Italy
| | - O R C Busch
- Department of Surgery, Cancer Center Amsterdam, Amsterdam UMC, University of Amsterdam, Netherlands
| | - Niccolò Napoli
- Division of General and Transplant Surgery, University of Pisa, Italy
| | - Jin-Young Jang
- Department of Surgery, Seoul National University College of Medicine, South Korea
| | - Wooil Kwon
- Department of Surgery, Seoul National University College of Medicine, South Korea
| | - Marco Del Chiaro
- Division of Surgical Oncology, Department of Surgery, University of Colorado Anschutz Medical Campus, Denver, CO
| | - Chiara Scandavini
- Department of Clinical Science, Intervention, and Technology (CLINTEC), Karolinska Institute, Department of Upper Gastrointestinal Diseases, Karolinska University Hospital, Stockholm, Sweden
| | - Mahmoud Abu-Awwad
- Department of Surgery, University Hospital Southampton, United Kingdom
| | - Thomas Armstrong
- Department of Surgery, University Hospital Southampton, United Kingdom
| | - Mohamed Abu Hilal
- Department of Surgery, University Hospital Southampton, United Kingdom; Department of Surgery, Istituto Fondazione Poliambulanza, Brescia, Italy
| | - Peter J Allen
- Department of Surgery, Hepatopancreatobiliary Service, Memorial Sloan Kettering Cancer Center, New York, NY; Department of Surgical Oncology, Duke University, Durham, NC
| | - Ammar Javed
- Division of Surgical Oncology, Surgical Oncology, Pathology and Oncology, Johns Hopkins Medical Institution, Baltimore, MD
| | - Magnus Kjellman
- Department of Molecular Medicine and Surgery, Division of Endocrine Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Alain Sauvanet
- Department of Hepato-Pancreato-Biliary Surgery, Pôle des Maladies de l'Appareil Digestif, Université de Paris-Paris Diderot, Beaujon Hospital, Clichy, France
| | - Detlef K Bartsch
- Department of Visceral, Thoracic, and Vascular Surgery, Philipps University, Marburg, Germany
| | - Claudio Bassi
- Unit of General and Pancreatic Surgery, University and Hospital Trust of Verona, Italy
| | - E J M Nieveen van Dijkum
- Department of Surgery, Cancer Center Amsterdam, Amsterdam UMC, University of Amsterdam, Netherlands
| | - M G Besselink
- Department of Surgery, Cancer Center Amsterdam, Amsterdam UMC, University of Amsterdam, Netherlands
| | - Ugo Boggi
- Division of General and Transplant Surgery, University of Pisa, Italy
| | - Sun-Whe Kim
- Department of Surgery, Seoul National University College of Medicine, South Korea
| | - Jin He
- Division of Surgical Oncology, Surgical Oncology, Pathology and Oncology, Johns Hopkins Medical Institution, Baltimore, MD
| | - Christofer L Wolfgang
- Division of Surgical Oncology, Surgical Oncology, Pathology and Oncology, Johns Hopkins Medical Institution, Baltimore, MD
| | - Massimo Falconi
- Pancreatic Surgery Unit, Vita-Salute University, San Raffaele Hospital, Milan, Italy
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11
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Chang TM, Chu PY, Hung WC, Shan YS, Lin HY, Huang KW, Chang JS, Chen LT, Tsai HJ. c-Myc promotes lymphatic metastasis of pancreatic neuroendocrine tumor through VEGFC upregulation. Cancer Sci 2020; 112:243-253. [PMID: 33128283 PMCID: PMC7780026 DOI: 10.1111/cas.14717] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 10/27/2020] [Accepted: 10/28/2020] [Indexed: 12/16/2022] Open
Abstract
Pancreatic neuroendocrine tumor (pNET) is a pancreatic neoplasm with neuroendocrine differentiation. pNET in early stage can be treated with surgical resection with long‐term survival, whereas the prognosis of pNET with locoregional or distant metastasis is relatively poor. Lymphangiogenesis is essential for tumor metastasis via the lymphatic system and may overhead distant metastasis. c‐Myc overexpression is involved in tumorigenesis. The role of c‐Myc in lymphangiogenesis is unclear. In this study, we evaluated the mechanism and effect of c‐Myc on lymphangiogenesis of pNET via interaction of lymphatic endothelial cells (LECs) and pNET cells. Lymph node metastasis was evaluated in pNET xenograft mice. Potential target agents to inhibit lymph node metastasis were evaluated in an animal model. We found that vascular endothelial growth factor C (VEGFC) expression and secretion was increased in pNET cell lines with c‐Myc overexpression. c‐Myc transcriptionally upregulates VEGFC expression and the secretion of pNET cells by directly binding to the E‐box of the VEGFC promoter and enhances VEGF receptor 3 phosphorylation and the tube formation of LECs. c‐Myc overexpression is associated with lymph node metastasis in pNET xenograft mice. Combinational treatment with an mTOR inhibitor and c‐Myc inhibitor or VEGFC‐neutralizing chimera protein reduced lymph node metastasis in the mice with c‐Myc overexpression. The mTOR inhibitor acts on lymphangiogenesis by reducing VEGFC expression in pNET cells and inhibiting the tube formation of LECs. In conclusion, mTOR and c‐Myc are important for lymphangiogenesis of pNET and are potential therapeutic targets for prevention and treatment of lymph node metastasis in pNET.
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Affiliation(s)
- Tsung-Ming Chang
- National Institute of Cancer Research, National Health Research Institutes, Tainan, Taiwan
| | - Pei-Yi Chu
- National Institute of Cancer Research, National Health Research Institutes, Tainan, Taiwan.,Department of Pathology, Show Chwan Memorial Hospital, Changhua, Taiwan.,School of Medicine, College of Medicine, Fu Jen Catholic University, New Taipei City, Taiwan
| | - Wen-Chun Hung
- National Institute of Cancer Research, National Health Research Institutes, Tainan, Taiwan.,School of Pharmacy, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yan-Shen Shan
- Department of Surgery, National Cheng Kung University Hospital, Tainan, Taiwan.,Institute of Clinical Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Hui-You Lin
- National Institute of Cancer Research, National Health Research Institutes, Tainan, Taiwan
| | - Kuo-Wei Huang
- National Institute of Cancer Research, National Health Research Institutes, Tainan, Taiwan
| | - Jeffrey S Chang
- National Institute of Cancer Research, National Health Research Institutes, Tainan, Taiwan
| | - Li-Tzong Chen
- National Institute of Cancer Research, National Health Research Institutes, Tainan, Taiwan.,Department of Oncology, College of Medicine, National Cheng Kung University Hospital, National Cheng Kung University, Tainan, Taiwan.,Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Institute of Molecular Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Hui-Jen Tsai
- National Institute of Cancer Research, National Health Research Institutes, Tainan, Taiwan.,Department of Oncology, College of Medicine, National Cheng Kung University Hospital, National Cheng Kung University, Tainan, Taiwan.,Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
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12
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Panzuto F, Massironi S, Partelli S, Campana D, Rinzivillo M, Invernizzi P, Andreasi V, Lamberti G, Falconi M. Gastro-entero-pancreatic neuroendocrine neoplasia: The rules for non-operative management. Surg Oncol 2020; 35:141-148. [PMID: 32877883 DOI: 10.1016/j.suronc.2020.08.015] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 07/26/2020] [Accepted: 08/17/2020] [Indexed: 02/05/2023]
Abstract
Gastroenteropancreatic neuroendocrine neoplasms (GEP-NENs) with favorable pathological and clinical features may be considered as indolent lesions, and therefore be amenable to conservative management. According to the primary tumor site, different non-aggressive approaches, based on endoscopic resection or simple active surveillance, can be proposed to selected patients fulfilling specific criteria. Tumor size, Ki67 proliferative index and depth of invasion are markers that can be used in order to identify these subjects. Patients with type I gastric NENs <1 cm as well as those with non-ampullary duodenal NENs <1 cm with no associated syndrome can be safely managed by endoscopic resection. On the other hand, an active surveillance approach is preferred over surgery for patients with asymptomatic, non-functioning pancreatic NENs ≤2 cm without dilation of the main pancreatic duct or bile duct. As far as NENs of the appendix are concerned, appendectomy should be considered as curative when a R0 resection has been achieved in the presence of a tumor ≤1.5 cm, graded as G1 and without lymphovascular invasion. Finally, G1 rectal NENs ≤1 cm without invasion of the muscular layer can be safely treated by endoscopic resection. Therefore, surgeons should be aware of the existence of indolent GEP-NENs, in order to avoid unnecessary operations with associated postoperative complications.
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Affiliation(s)
- Francesco Panzuto
- Digestive Disease Unit, Sant'Andrea University Hospital, ENETS Center of Excellence, Rome, Italy.
| | - Sara Massironi
- Division of Gastroenterology and Center for Autoimmune Liver Diseases, Department of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
| | - Stefano Partelli
- Pancreatic Surgery Unit, Pancreas Translational and Clinical Research Center, ENETS Center of Excellence, IRCCS San Raffaele Scientific Institute - Vita-Salute San Raffaele University, Milan, Italy
| | - Davide Campana
- Division of Oncology, Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Maria Rinzivillo
- Digestive Disease Unit, Sant'Andrea University Hospital, ENETS Center of Excellence, Rome, Italy
| | - Pietro Invernizzi
- Division of Gastroenterology and Center for Autoimmune Liver Diseases, Department of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
| | - Valentina Andreasi
- Pancreatic Surgery Unit, Pancreas Translational and Clinical Research Center, ENETS Center of Excellence, IRCCS San Raffaele Scientific Institute - Vita-Salute San Raffaele University, Milan, Italy
| | - Giuseppe Lamberti
- Division of Oncology, Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Massimo Falconi
- Pancreatic Surgery Unit, Pancreas Translational and Clinical Research Center, ENETS Center of Excellence, IRCCS San Raffaele Scientific Institute - Vita-Salute San Raffaele University, Milan, Italy
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13
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Elbanna KY, Jang HJ, Kim TK. Imaging diagnosis and staging of pancreatic ductal adenocarcinoma: a comprehensive review. Insights Imaging 2020; 11:58. [PMID: 32335790 PMCID: PMC7183518 DOI: 10.1186/s13244-020-00861-y] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2020] [Accepted: 03/06/2020] [Indexed: 02/06/2023] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) has continued to have a poor prognosis for the last few decades in spite of recent advances in different imaging modalities mainly due to difficulty in early diagnosis and aggressive biological behavior. Early PDAC can be missed on CT due to similar attenuation relative to the normal pancreas, small size, or hidden location in the uncinate process. Tumor resectability and its contingency on the vascular invasion most commonly assessed with multi-phasic thin-slice CT is a continuously changing concept, particularly in the era of frequent neoadjuvant therapy. Coexistent celiac artery stenosis may affect the surgical plan in patients undergoing pancreaticoduodenectomy. In this review, we discuss the challenges related to the imaging of PDAC. These include radiological and clinical subtleties of the tumor, evolving imaging criteria for tumor resectability, preoperative diagnosis of accompanying celiac artery stenosis, and post-neoadjuvant therapy imaging. For each category, the key imaging features and potential pitfalls on cross-sectional imaging will be discussed. Also, we will describe the imaging discriminators of potential mimickers of PDAC.
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Affiliation(s)
- Khaled Y Elbanna
- Joint Department of Medical Imaging, University Health Network, Mount Sinai Hospital and Women's College Hospital, University of Toronto, Toronto, ON, Canada.
| | - Hyun-Jung Jang
- Joint Department of Medical Imaging, University Health Network, Mount Sinai Hospital and Women's College Hospital, University of Toronto, Toronto, ON, Canada
| | - Tae Kyoung Kim
- Joint Department of Medical Imaging, University Health Network, Mount Sinai Hospital and Women's College Hospital, University of Toronto, Toronto, ON, Canada
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14
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Imaging and implications of tumor thrombus in abdominal malignancies: reviewing the basics. Abdom Radiol (NY) 2020; 45:1057-1068. [PMID: 31696267 DOI: 10.1007/s00261-019-02282-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Extension of tumor tissue within a vein is a recognized prognostic factor in abdominal malignancy because of its influence on tumor staging and selection of therapeutic management. With the advent of newer surgical techniques, and variable treatment strategies, imaging plays a crucial role in categorizing patients according to the tumor resectability and vascular reconstruction techniques during surgery. Understanding the clinical impact of tumor thrombus increases the awareness of the radiologist about the key findings in tumor staging and decision-making of surgical approach. Ultrasound (US), computed tomography (CT), and magnetic resonance imaging (MRI) can be used individually and in combination to accurately assess the tumor thrombus. In our pictorial review, we will discuss the imaging findings and clinical consequences of tumor thrombosis in abdominal malignancies, including hepatocellular carcinoma, pancreatic neuroendocrine tumor, renal cancer, and adrenal cortical carcinoma.
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15
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The Evolution of Surgical Strategies for Pancreatic Neuroendocrine Tumors (Pan-NENs): Time-trend and Outcome Analysis From 587 Consecutive Resections at a High-volume Institution. Ann Surg 2020; 269:725-732. [PMID: 29189384 DOI: 10.1097/sla.0000000000002594] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
OBJECTIVE The objective of the present analysis is 2-fold: first, to define the evolution of time trends on the surgical approach to pancreatic neuroendocrine neoplasms (Pan-NENs); second, to perform a complete analysis of the predictors of oncologic outcome. BACKGROUND Reflecting their rarity and heterogeneity, Pan-NENs represent a clinical dilemma. In particular, there is a scarcity of data regarding their long-term follow-up after surgical resection. METHODS From the Institutional Pan-NEN database, 587 resected cases from 1990 to 2015 were extracted. The time span was arbitrarily divided into 3 discrete clusters enabling a balanced comparison between patient groups. Analyses for predictors of recurrence and survival were performed, together with conditional survival analyses. RESULTS Among the 587 resected Pan-NENs, 75% were nonfunctioning tumors, and 5% were syndrome-associated tumors. The mean age was 54 years (±14 years), and 51% of the patients were female. The median tumor size was 20 mm (range 4 to 140), 62% were G1, 32% were G2, and 4% were G3 tumors. Time trends analysis revealed that the number of resected Pan-NENs constantly increased, while the size (from 25 to 20 mm) and G1 proportion (from 65% to 49%) decreased during the study period. After a mean follow-up of 75 months, recurrence analysis revealed that nonfunctioning tumors, tumor grade, N1 status, and vascular invasion were all independent predictors of recurrence. Regardless of size, G1 nonfunctioning tumors with no nodal involvement and vascular invasion had a negligible risk of recurrence at 5 years. CONCLUSIONS Pan-NENs have been increasingly diagnosed and resected during the last 3 decades, revealing reliable predictors of outcome. Functioning and nodal status, tumor grade, and vascular invasion accurately predict survival and recurrence with resulting implications for patient follow-up.
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16
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Howe JR, Merchant NB, Conrad C, Keutgen XM, Hallet J, Drebin JA, Minter RM, Lairmore TC, Tseng JF, Zeh HJ, Libutti SK, Singh G, Lee JE, Hope TA, Kim MK, Menda Y, Halfdanarson TR, Chan JA, Pommier RF. The North American Neuroendocrine Tumor Society Consensus Paper on the Surgical Management of Pancreatic Neuroendocrine Tumors. Pancreas 2020; 49:1-33. [PMID: 31856076 PMCID: PMC7029300 DOI: 10.1097/mpa.0000000000001454] [Citation(s) in RCA: 198] [Impact Index Per Article: 49.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
This manuscript is the result of the North American Neuroendocrine Tumor Society consensus conference on the surgical management of pancreatic neuroendocrine tumors from July 19 to 20, 2018. The group reviewed a series of questions of specific interest to surgeons taking care of patients with pancreatic neuroendocrine tumors, and for each, the available literature was reviewed. What follows are these reviews for each question followed by recommendations of the panel.
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Affiliation(s)
- James R. Howe
- Department of Surgery, University of Iowa Carver College of Medicine, Iowa City, IA
| | | | - Claudius Conrad
- Department of Surgery, St. Elizabeth Medical Center, Tufts University School of Medicine, Boston, MA
| | | | - Julie Hallet
- Department of Surgery, University of Toronto, Sunnybrook Health Sciences Centre, Toronto, Canada
| | - Jeffrey A. Drebin
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Rebecca M. Minter
- Department of Surgery, University of Wisconsin School of Medicine and Public Health, Madison, WI
| | | | | | - Herbert J. Zeh
- Department of Surgery, University of Texas Southwestern Medical Center, Dallas, TX
| | - Steven K. Libutti
- §§ Department of Surgery, Rutgers Cancer Institute of New Jersey, New Brunswick, NJ
| | - Gagandeep Singh
- Department of Surgery, City of Hope Comprehensive Cancer Center, Duarte, CA
| | - Jeffrey E. Lee
- Department of Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Thomas A. Hope
- Department of Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, CA
| | - Michelle K. Kim
- Department of Medicine, Mt. Sinai Medical Center, New York, NY
| | - Yusuf Menda
- Department of Radiology, University of Iowa Carver College of Medicine, Iowa City, IA
| | | | - Jennifer A. Chan
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA
| | - Rodney F. Pommier
- Department of Surgery, Oregon Health & Sciences University, Portland, OR
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Zhang C, Wu Y, Zhuang H, Li D, Lin Y, Yin Z, Lu X, Hou B, Jian Z. Establishment and validation of an AJCC stage- and histologic grade-based nomogram for pancreatic neuroendocrine tumors after surgical resection. Cancer Manag Res 2019; 11:7345-7352. [PMID: 31496796 PMCID: PMC6689125 DOI: 10.2147/cmar.s200340] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Accepted: 06/12/2019] [Indexed: 01/30/2023] Open
Abstract
Background Development of an accurate model to predict prognosis for patients with pancreatic neuroendocrine tumors (P-NETs) after surgical resection is urgently needed. Methods In the present study, we conducted Cox proportional hazards regression to identify critical prognostic factors for P-NETs by analyzing data from 2174 patients in the Surveillance, Epidemiology, and End Results (SEER) database. Based on the results of multivariate analysis, a novel nomogram was established. Finally, the novel nomogram for P-NETs was validated in a cohort of 81 patients from a Chinese institute. Results In the multivariate analysis, age, tumor location, American Joint Committee on Cancer (AJCC) stage, histologic grade, lymph node ratio (LNR) and tumor size were independent risk factors for overall survival (OS) in P-NET patients who underwent radical resection. A nomogram consisting of age, sex, AJCC stage and histologic grade was found to have a concordance index (C-index) of 0.79 for OS in the SEER database, which was significantly higher than the C-index based on the AJCC stage, European Neuroendocrine Tumor Society (ENETS) stage or histologic grade alone. In the validation cohort, the C-index based on the nomogram reached 0.78 for OS. We also defined high-risk (total points >13.5 based on the nomogram) and low-risk populations (total points <13.5 based on the nomogram) in the validation cohort. We found that the actual 5-year recurrence rate in the high-risk group was significantly higher than that in the low-risk group (80.8% vs 23.4%, P<0.001). Kaplan-Meier analysis showed that the 5-year recurrence-free survival (RFS) in the low-risk group was significantly higher than that in the high-risk group (P<0.001). Conclusion An AJCC stage- and histologic grade-based model was found to be extremely efficient in predicting survival for patients with P-NETs after surgical resection and deserves further evaluation for future clinical applications.
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Affiliation(s)
- Chuanzhao Zhang
- Department of General Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, People's Republic of China
| | - Yanxia Wu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510080, People's Republic of China
| | - Hongkai Zhuang
- Department of General Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, People's Republic of China.,Department of Clinical Medicine, Shantou University of Medical College, Shantou 515000, People's Republic of China
| | - Dezhi Li
- Department of General Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, People's Republic of China
| | - Ye Lin
- Department of General Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, People's Republic of China
| | - Zi Yin
- Department of General Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, People's Republic of China
| | - Xin Lu
- Department of General Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, People's Republic of China
| | - Baohua Hou
- Department of General Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, People's Republic of China
| | - Zhixiang Jian
- Department of General Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, People's Republic of China
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Competing risks and cause-specific mortality in patients with pancreatic neuroendocrine tumors. Eur J Gastroenterol Hepatol 2019; 31:749-755. [PMID: 30601340 DOI: 10.1097/meg.0000000000001350] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
BACKGROUND AND OBJECTIVE Currently, there are no competing risk analyses of cause-specific mortality in patients with pancreatic neuroendocrine tumors. MATERIALS AND METHODS We estimated a cumulative incidence function for cause-specific mortality. The first nomogram for predicting cause-specific mortality was constructed using a proportional subdistribution hazard model, validated using bootstrap cross-validation, and evaluated with decision curve analysis. RESULTS Sex, age, positive lymph node status, metastasis, surveillance, epidemiology, and end results historic stage, grade, and surgery strongly predicted cause-specific mortality. The discrimination performance of Fine-Gray models was evaluated using the c-index, which was 0.864. In addition, the calibration plot of the developed nomogram demonstrated good concordance between the predicted and actual outcomes. Decision curve analysis yielded a range of threshold probabilities (0.014-0.779) at which the clinical net benefit of the risk model was greater than that in hypothetical all-screening or no-screening scenarios. CONCLUSION Our nomogram allows selection of a patient population at high risk for cancer-specific mortality and thus facilitates the design of prevention trials for the affected population.
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19
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Ki-67 Index of 5% is Better Than 2% in Stratifying G1 and G2 of the World Health Organization Grading System in Pancreatic Neuroendocrine Tumors. Pancreas 2019; 48:795-798. [PMID: 31210659 DOI: 10.1097/mpa.0000000000001331] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
OBJECTIVE The World Health Organization (WHO) grading system for the stratification of G1 and G2 pancreatic neuroendocrine tumors (pNETs) using an optimal Ki-67 index cutoff is still controversial. The present study aimed at finding one optimal Ki-67 cutoff value that distinguishes G1 and G2 tumors by analyzing the prognosis of patients with pNET in our center. METHODS Data from 84 patients with pNET undergoing surgical resection in The First Affiliated Hospital of Sun Yat-sen University between March 2003 and October 2015 were retrospectively analyzed. RESULTS The 5-year overall survival rate was 74.2%. Univariate analysis revealed that functional secretion, WHO grade, and TNM stage were significantly associated with long-term survival (all P < 0.05). Multivariate analysis demonstrated that WHO grade (P = 0.023) and TNM stage (P = 0.040) were independent prognostic factors. The receiver operating characteristic curve showed that the Ki-67 index of 5% had the best predictive ability (76.7%) for 5-year survival with a hazard ratio of 44.7. The hazard ratio was only 8.14 when the Ki-67 index cutoff was 2%. CONCLUSIONS TNM stage and WHO grade were independent prognostic factors of pNETs. A Ki-67 index of 5% is better than 2% in stratifying G1 and G2 pNET tumors.
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Foubert F, Salimon M, Dumars C, Regenet N, Girot P, Venara A, Senellart H, Heymann MF, Matysiak-Budnik T, Touchefeu Y. Survival and prognostic factors analysis of 151 intestinal and pancreatic neuroendocrine tumors: a single center experience. J Gastrointest Oncol 2019; 10:103-111. [PMID: 30788165 DOI: 10.21037/jgo.2018.09.13] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Background Intestinal and pancreatic neuroendocrine tumors (IP-NETs) are rare tumors with heterogeneous outcomes. The aim of our study was to determine the clinical, therapeutic and pathological factors which impact the overall survival (OS) in IP-NETs. Methods All the patients diagnosed with IP-NETs at the Nantes University Hospital between October 1994 and October 2013 were retrospectively analysed. Patients with MEN-1 (Type 1 Multiple Endocrine Neoplasia) or Von Hippel-Lindau syndrome were excluded. Additionally, a prospective analysis of tumor grade (mitotic index and Ki67 index) was performed on tumor samples. OS was evaluated by Kaplan-Meier method and prognostic factors by log-rank test and Cox model. Results The study included 151 patients. Median age was 60 (range, 14-81). Primary tumor was pancreatic in 86 patients (56.95%) and intestinal in 65 patients (43.05%). Tumors were metastatic (synchronous or metachronous) in 72 patients (47.7%). The median OS was 157 months. For all IP-NETs, age >65 years (P<0.0001), Ki67 >5% (P=0.03), synchronous metastases (P=0.016), primary tumor size >25 mm (P=0.03) and emergency surgery (P=0.007) were independent poor prognostic factors. Conclusions In this large series of patients with IP-NET, age >65 years, Ki67 >5%, primary tumor size >25 mm, synchronous metastases and emergency surgery for acute complications have been identified as independent poor prognostic factors.
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Affiliation(s)
- Fanny Foubert
- IMAD, Department of Gastroenterology & Digestive Oncology, Nantes University Hospital, Nantes, France
| | - Maëva Salimon
- IMAD, Department of Gastroenterology & Digestive Oncology, Nantes University Hospital, Nantes, France
| | - Clotilde Dumars
- Department of Pathology, Nantes University Hospital, Nantes, France
| | - Nicolas Regenet
- IMAD, Department of Digestive Surgery, Nantes University Hospital, Nantes, France
| | - Paul Girot
- IMAD, Department of Gastroenterology & Digestive Oncology, Nantes University Hospital, Nantes, France
| | - Aurélien Venara
- Department of Digestive Surgery, Angers University Hospital, Angers, France.,INSERM U1235, Nantes University, Nantes, France
| | - Hélène Senellart
- Department of Medical Oncology, Cancer Research Institute, Saint Herblain, France
| | | | - Tamara Matysiak-Budnik
- IMAD, Department of Gastroenterology & Digestive Oncology, Nantes University Hospital, Nantes, France.,INSERM U1235, Nantes University, Nantes, France
| | - Yann Touchefeu
- IMAD, Department of Gastroenterology & Digestive Oncology, Nantes University Hospital, Nantes, France.,INSERM U1235, Nantes University, Nantes, France
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22
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Nanno Y, Toyama H, Zen Y, Akita M, Ando Y, Mizumoto T, Ueda Y, Ajiki T, Okano K, Suzuki Y, Fukumoto T. Serum Elastase 1 Level as a Risk Factor for Postoperative Recurrence in Patients with Well-Differentiated Pancreatic Neuroendocrine Neoplasms. Ann Surg Oncol 2018; 25:3358-3364. [PMID: 30054822 DOI: 10.1245/s10434-018-6675-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Indexed: 12/13/2022]
Abstract
PURPOSE This study was designed to assess the potential role of the preoperative serum level of elastase 1 as a risk factor for recurrence in patients with resectable well-differentiated pancreatic neuroendocrine neoplasms (PanNETs). METHODS Preoperative serum elastase 1 levels were measured in 53 patients with PanNETs who underwent complete tumor resection in two tertiary referral centers between January 2004 and June 2017. The preoperative elastase 1 levels were correlated with clinicopathological characteristics, including tumor recurrence and recurrence-free survival. RESULTS The median elastase 1 level was 96 ng/dL (range: 21-990 ng/dL). Preoperative serum elastase 1 levels were significantly higher in those with tumors ≥ 20 mm in diameter (vs. < 20 mm, P = 0.018), WHO grade 2 (vs. grade 1, P = 0.035), and microscopic venous invasion (vs. without venous invasion, P = 0.039). The median preoperative serum level of elastase 1 was higher in patients with recurrence than in those without recurrence (251 vs. 80 ng/dL, P = 0.004). Receiver operating characteristic analysis of elastase 1 levels showed that a cutoff level of 250 ng/dL was associated with postoperative recurrence, with 63% sensitivity, 100% specificity, and 94% overall accuracy. Patients with higher elastase 1 levels showed significantly worse recurrence-free survival than that of those with lower levels (2-year recurrence-free survival rate: 25% and 92%, respectively, P < 0.001). CONCLUSIONS Our data provide the first evidence that high preoperative elastase 1 levels may be a risk factor for postoperative recurrence in patients with resectable PanNETs.
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Affiliation(s)
- Yoshihide Nanno
- Division of Hepato-Biliary-Pancreatic Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Hirochika Toyama
- Division of Hepato-Biliary-Pancreatic Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Kobe, Japan.
| | - Yoh Zen
- Department of Diagnostic Pathology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Masayuki Akita
- Department of Diagnostic Pathology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Yasuhisa Ando
- Department of Gastroenterological Surgery, Kagawa University Faculty of Medicine, Kagawa, Japan
| | - Takuya Mizumoto
- Division of Hepato-Biliary-Pancreatic Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Yuki Ueda
- Division of Hepato-Biliary-Pancreatic Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Tetsuo Ajiki
- Division of Hepato-Biliary-Pancreatic Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Keiichi Okano
- Department of Gastroenterological Surgery, Kagawa University Faculty of Medicine, Kagawa, Japan
| | - Yasuyuki Suzuki
- Department of Gastroenterological Surgery, Kagawa University Faculty of Medicine, Kagawa, Japan
| | - Takumi Fukumoto
- Division of Hepato-Biliary-Pancreatic Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
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Minimally invasive distal pancreatectomy for PNETs: laparoscopic or robotic approach? Oncotarget 2018; 8:33872-33883. [PMID: 28477012 PMCID: PMC5464919 DOI: 10.18632/oncotarget.17513] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Accepted: 04/18/2017] [Indexed: 12/19/2022] Open
Abstract
Background The most effective and radical treatment for pancreatic neuroendocrine tumors (PNETs) is surgical resection. Minimally invasive surgery has been increasingly used in pancreatectomy. Initial results in robotic distal pancreatectomy (RDP) have been encouraging. Nonetheless, data comparing outcomes of RDP with those of laparoscopic distal pancreatectomy (LDP) in treating PNETs are rare. The aim of this study was to compare the safety and efficacy of RDP and LDP for PNETs. Methods From September 2010 to January 2017, operative parameters and perioperative outcomes in an initial experience with 43 consecutive patients undergoing RDP were collected and compared with those in 31 patients undergoing LDP. Results Patients undergoing RDP and LDP demonstrated equivalent age, sex, ASA score, tumor location and tumor size. Operating time, length of resected pancreas, postoperative length of hospital stay and rates of conversion to open, pancreatic fistula, transfusion and reoperation were not statistically different. Patients in the RDP group were associated with significantly higher overall (79.1 vs. 48.4 %, P = 0.006) and Kimura spleen preservation rates (72.1 vs. 16.1%, P < 0.001) and had reduced risk of excessive blood loss (50 vs. 200mL, P < 0.001). Oncological outcomes in this series were superior for the RDP group with more lymph node harvest for G2 and G3 PNETs (3.5 vs. 2, P = 0.034). Conclusions Both RDP and LDP are efficacious and safe methods in treating PNETs located in the body or tail of pancreas. Robotic approach offers advantages with less intraoperative blood loss, higher spleen preservation rate and more lymph node harvest. It may be sensible to choose RDP for patients who fit indications for scheduled spleen preservation.
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Shirota T, Nagakawa Y, Sahara Y, Takishita C, Hijikata Y, Hosokawa Y, Nakajima T, Osakabe H, Katsumata K, Tsuchida A. Surgical resection of neuroendocrine tumors of the pancreas (pNETs) by minimally invasive surgery: the laparoscopic approach. Gland Surg 2018; 7:12-19. [PMID: 29629315 DOI: 10.21037/gs.2017.11.06] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Neuroendocrine tumors of the pancreas (pNETs) are a rare group of neoplasms that originate from the endocrine portion of the pancreas. Tumors that either secrete or do not secrete compounds, resulting in symptoms, can be classified as functioning and non-functioning pNETs, respectively. The prevalence of such tumors has recently increased due to the use of more sensitive imaging techniques, such as multidetector computed tomography, magnetic resonance imaging and endoscopic ultrasound. The biological behavior of pNETs varies widely from indolent, well-differentiated tumors to those that are far more aggressive. The most effective and radical treatment for pNETs is surgical resection. Over the last decade, minimally invasive surgery has been increasingly used in pancreatectomy, with laparoscopic pancreatic surgery (LPS) emerging as an alternative to open pancreatic surgery (OPS) in patients with pNETs. Non-comparative studies have shown that LPS is safe and effective. In well-selected groups of patients with pancreatic lesions, LPS was found to results in good perioperative outcomes, including reduced intraoperative blood loss, postoperative pain, time to recovery, and length of hospital stay. Despite the encouraging results of studies from highly specialized centers with extensive experience, no randomized trials to date have conclusively validated these findings. Indications for minimally invasive LPS for patients with pNETs remain unclear. This review presents the current state of LPS for pNETs.
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Affiliation(s)
- Tomoki Shirota
- Department of Gastrointestinal and Pediatric Surgery, Tokyo Medical University, Tokyo, Japan
| | - Yuichi Nagakawa
- Department of Gastrointestinal and Pediatric Surgery, Tokyo Medical University, Tokyo, Japan
| | - Yatsuka Sahara
- Department of Gastrointestinal and Pediatric Surgery, Tokyo Medical University, Tokyo, Japan
| | - Chie Takishita
- Department of Gastrointestinal and Pediatric Surgery, Tokyo Medical University, Tokyo, Japan
| | - Yosuke Hijikata
- Department of Gastrointestinal and Pediatric Surgery, Tokyo Medical University, Tokyo, Japan
| | - Yuichi Hosokawa
- Department of Gastrointestinal and Pediatric Surgery, Tokyo Medical University, Tokyo, Japan
| | - Tetsushi Nakajima
- Department of Gastrointestinal and Pediatric Surgery, Tokyo Medical University, Tokyo, Japan
| | - Hiroaki Osakabe
- Department of Gastrointestinal and Pediatric Surgery, Tokyo Medical University, Tokyo, Japan
| | - Kenji Katsumata
- Department of Gastrointestinal and Pediatric Surgery, Tokyo Medical University, Tokyo, Japan
| | - Akihiko Tsuchida
- Department of Gastrointestinal and Pediatric Surgery, Tokyo Medical University, Tokyo, Japan
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Cienfuegos JA, Rotellar F, Salguero J, Ruiz-Canela M, Núñez Córdoba JM, Sola I, Benito A, Martí-Cruchaga P, Zozaya G, Pardo F, Hernández Lizoáin JL. A single institution's 21-year experience with surgically resected pancreatic neuroendocrine tumors: an analysis of survival and prognostic factors. REVISTA ESPANOLA DE ENFERMEDADES DIGESTIVAS 2017; 108:689-696. [PMID: 27701882 DOI: 10.17235/reed.2016.4323/2016] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND Pancreatic neuroendocrine tumors (pNETs) comprise a heterogeneous group of tumors with a varied biological behavior. In the present study, we analyzed the experience of 79 pNETs resected between 1999 and 2014. The pathologic prognostic factors (European Neuroendocrine Tumor Society, ENETS; and AJCC) classification, vascular invasion (VI), proliferation index (ki-67) and the presence of necrosis were retrospectively reviewed. METHODS The clinical data of 79 patients with pNETs who underwent surgery were retrospectively analyzed. Mortality rates and Kaplan-Meier estimates were used to evaluate survival over time for pathologic stages, tumor functionality, and vascular invasion. Cox proportional hazards models were used to calculate the hazard ratio regarding ENETS, AJCC staging, sex, tumor functionality and vascular invasion. RESULTS The male:female ratio was 40:39. Twenty-one patients (26%) had functional tumors and 58 (73.4%) had non-functional tumors, of which 35 (44.3%) were diagnosed incidentally. Seventeen Whipple procedures, 46 distal pancreatectomies (including 26 laparoscopic and 20 open procedures), 8 laparoscopic central pancreatectomies, 1 laparoscopic resection of the uncinated process and 7 enucleations (one laparoscopic) were performed. Vascular invasion and necrosis were observed in 29 of 75 cases (38.6%) and in 16 cases (29%), respectively. The comparison between survivor functions of ENETS staging categories showed statistically significant differences (p = 0.042). Mortality rate was higher in patients with non-functioning tumors compared with hormonally functioning tumors (p = 0.052) and in those with vascular invasion (p = 0.186). CONCLUSIONS In spite of the heterogeneity of pNETs, the ENETS TNM classification efficiently predicts long-term prognosis. The non-functioning tumors and the presence of vascular invasion are associated with poor prognosis.
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Affiliation(s)
| | | | - Joseba Salguero
- Cirugía General y Digestiva, Clinica Universidad de Navarra, España
| | - Miguel Ruiz-Canela
- Department of Preventive Medicine and Public Healt, Medical School. University of Navarra, España
| | | | - Iosu Sola
- Department of Pathology, Hospital San Pedro, España
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A Cienfuegos J, Rotellar F, Ruiz-Canela M. Pancreatic neuroendocrine tumors. Prognostic factors. REVISTA ESPANOLA DE ENFERMEDADES DIGESTIVAS 2017; 109:738-739. [PMID: 28929779 DOI: 10.17235/reed.2017.5109/2017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
We thank Modesto Varas et al. for their opportune comments with regard to the oncologic outcomes of our series of patients undergoing surgery for pancreatic neuroendocrine tumors (PNET). We agree with Varas et al. in relation to the increase in non-functional tumors (73%) and the incidental form of presentation (44%). These figures are in line with those presented in most series.
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Affiliation(s)
| | | | - Miguel Ruiz-Canela
- Department of Preventive Medicine and Public Healt, Medical School. University of Navarra, España
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27
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Cienfuegos JA, Rotellar F, Ruiz-Canela M. Neuroendocrine tumors of the pancreas: keys issues in dealing with heterogeneity. REVISTA ESPANOLA DE ENFERMEDADES DIGESTIVAS 2017; 109:672. [PMID: 28776382 DOI: 10.17235/reed.2017.4997/2017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
We thank Modesto Varas et al. for their opportune comments with regard to the oncologic outcomes of our series of patients undergoing surgery for a pancreatic neuroendocrine tumor. We agree Varas et al. with respect to the increase in nonfunctional tumors (73%) and the figures of the incidental form of presentation (44%), which are in line with those from most series.
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Affiliation(s)
| | | | - Miguel Ruiz-Canela
- Department of Preventive Medicine and Public Healt, Medical School. University of Navarra, España
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Abstract
Pancreatic neuroendocrine neoplasms (pNENs) are a heterogeneous group of tumors including well differentiated pancreatic neuroendocrine tumors (pNETs) and neuroendocrine carcinomas (pNECs). The incidence of pNENs has increased over the past few decades. Although, the understanding and interest for this tumor have also increased significantly, the debate about classification and diagnosis continues. Although the primary treatment for pNENs is surgical resection, there is still a lack of effective therapeutic options for patients with advanced unresectable pNENs. Although many therapeutic methods have proven effective, the choice of treatment and specific programs are still unclear. Our article presents an overview of pNENs, with a focus on their diagnostic work-up, clinical presentation and treatment options.
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Affiliation(s)
- Jian Sun
- Department of Hepatobiliary and Pancreatic Surgery, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
- Address correspondence to: Dr. Jian Sun, Department of Biliopancreatic Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, 107 Yanjiangxi Road, Guangzhou 510120, China. E-mail:
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Folkert IW, Hernandez P, Roses RE. Multidisciplinary management of nonfunctional neuroendocrine tumor of the pancreas. World J Gastroenterol 2016; 22:3105-3116. [PMID: 27003988 PMCID: PMC4789986 DOI: 10.3748/wjg.v22.i11.3105] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Revised: 01/05/2016] [Accepted: 01/11/2016] [Indexed: 02/06/2023] Open
Abstract
Pancreatic neuroendocrine tumors (PNETs) are a rare and diverse group of tumors; nonfunctional (NF) PNETs account for the majority of cases. Most patients with NF-PNETs have metastatic disease at the time of presentation. A variety of treatment modalities exist, including medical, liver directed, and surgical treatments. Aggressive surgical management is associated with prolonged survival, however available data are limited by selection bias and the frequent combination of PNETs with carcinoid tumors. Although few patients with metastatic disease will be cured, application of currently available therapies in a multidisciplinary setting can lead to excellent outcomes with prolonged patient survival.
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Katsuta E, Kudo A, Akashi T, Mitsunori Y, Matsumura S, Aihara A, Ban D, Ochiai T, Tanaka S, Eishi Y, Tanabe M. Macroscopic morphology for estimation of malignant potential in pancreatic neuroendocrine neoplasm. J Cancer Res Clin Oncol 2016; 142:1299-306. [PMID: 26885661 DOI: 10.1007/s00432-016-2128-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2016] [Accepted: 02/05/2016] [Indexed: 12/17/2022]
Abstract
PURPOSE Pancreatic neuroendocrine neoplasm (Pan-NEN) representing approximately 1.3 % of pancreatic malignancy cases in incidence has been a so rare disease that it remains major problem to analyze the malignant potential. The aim of this study was to verify whether the macroscopic morphology of Pan-NEN, a novel pathological classification, contributes to malignant potential. METHODS From a total of 86 patients with Pan-NEN, 41 surgical sections obtained from the primary site were classified by their morphology into a simple nodular (SN) group and a non-SN group. The non-SN group was further divided into three subtypes: simple nodular with extranodular growth (SNEG), confluent multinodular (CM), and infiltrative (IF). The clinicopathological features of the SN and the non-SN groups were retrospectively compared. RESULTS Overall 5-year survival rates with and without surgical resection were 94 and 48 %, respectively. SN and non-SN types were identified in 21 and 20 patients, respectively. The non-SN group comprised 14 SNEG type, 2 CM type, and 4 IF type. Synchronous lymph node metastases (p = 0.009), synchronous liver metastases (p = 0.048), microinvasion to an adjacent organ (p < 0.001), vascular invasion (p = 0.023), and neural invasion (p = 0.019) were more significant in the non-SN group than in the SN group. As judged by WHO 2004 classification and TNM stages (AJCC and ENETS), non-SN type showed malignant trend (p < 0.05). Moreover, overall 5-year survival rates of SN and non-SN groups were 100 and 84.4 %, respectively (p = 0.048). CONCLUSIONS Non-SN tumors may have higher malignant potential than SN tumors.
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Affiliation(s)
- Eriko Katsuta
- Department of Hepato-Biliary-Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Atsushi Kudo
- Department of Hepato-Biliary-Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan.
| | - Takumi Akashi
- Department of Human Pathology, Graduate School of Tokyo Medical and Dental University, Tokyo, Japan
| | - Yusuke Mitsunori
- Department of Hepato-Biliary-Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Satoshi Matsumura
- Department of Hepato-Biliary-Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Arihiro Aihara
- Department of Hepato-Biliary-Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Daisuke Ban
- Department of Hepato-Biliary-Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Takanori Ochiai
- Department of Hepato-Biliary-Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Shinji Tanaka
- Department of Molecular Oncology, Graduate School of Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yoshinobu Eishi
- Department of Human Pathology, Graduate School of Tokyo Medical and Dental University, Tokyo, Japan
| | - Minoru Tanabe
- Department of Hepato-Biliary-Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
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Falconi M, Eriksson B, Kaltsas G, Bartsch DK, Capdevila J, Caplin M, Kos-Kudla B, Kwekkeboom D, Rindi G, Klöppel G, Reed N, Kianmanesh R, Jensen RT. ENETS Consensus Guidelines Update for the Management of Patients with Functional Pancreatic Neuroendocrine Tumors and Non-Functional Pancreatic Neuroendocrine Tumors. Neuroendocrinology 2016; 103:153-71. [PMID: 26742109 PMCID: PMC4849884 DOI: 10.1159/000443171] [Citation(s) in RCA: 885] [Impact Index Per Article: 110.6] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Lee L, Igarashi H, Fujimori N, Hijioka M, Kawabe K, Oda Y, Jensen RT, Ito T. Long-term outcomes and prognostic factors in 78 Japanese patients with advanced pancreatic neuroendocrine neoplasms: a single-center retrospective study. Jpn J Clin Oncol 2015; 45:1131-8. [PMID: 26378090 DOI: 10.1093/jjco/hyv143] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Accepted: 08/25/2015] [Indexed: 11/12/2022] Open
Abstract
OBJECTIVE Despite an increase in the number of Japanese patients with pancreatic neuroendocrine neoplasms, long-term outcomes and prognostic factors, especially for those with advanced disease, remain unclear. METHODS We retrospectively reviewed the medical records of 78 patients with unresectable pancreatic neuroendocrine neoplasms treated at our hospital from January 1987 to March 2015. Survival analyses were performed using Kaplan-Meier methods. Prognostic significance of several clinicopathological factors were analyzed by univariate and multivariate analyses using a Cox regression model. RESULTS Median overall survivals of pancreatic neuroendocrine tumor (n = 64) and pancreatic neuroendocrine carcinoma (n = 14) were 83.7 and 9.1 months, respectively (hazard ratio: 0.02, 95% confidence interval: 0.01-0.08, P < 0.001). Although no significant differences were observed using a Ki-67 cut-off value of 2% (hazard ratio: 0.46, 95% confidence interval: 0.16-1.13, P = 0.0989), a Ki-67 cut-off of 10% was a significant predictor in patients with pancreatic neuroendocrine tumor (hazard ratio: 9.95, 95% confidence interval, 3.01-32.97, P < 0.001). Treatment after the advent of targeted therapy (hazard ratio: 0.07, 95% confidence interval: 0.03-0.19, P < 0.001) and the presence of bone metastases (hazard ratio: 4.38, 95% confidence interval: 1.42-11.29, P = 0.013) were significant prognostic factors in patients with pancreatic neuroendocrine tumor evaluated by univariate analysis. Multivariate analysis also revealed that a Ki-67 index ≥10% (hazard ratio: 38.8, 95% confidence interval: 8.42-226.62, P < 0.001), approval of targeted therapy (hazard ratio: 0.02, 95% confidence interval: 0.00-0.11, P < 0.001) and bone metastases (hazard ratio: 5.56, 95% confidence interval: 1.10-24.00, P = 0.039) were independent prognostic factors. CONCLUSIONS We elucidated the long-term outcomes and prognostic factors in Japanese patients with advanced pancreatic neuroendocrine neoplasms.
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Affiliation(s)
- Lingaku Lee
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka
| | - Hisato Igarashi
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka
| | - Nao Fujimori
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka
| | - Masayuki Hijioka
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka
| | - Ken Kawabe
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka
| | - Yoshinao Oda
- Department of Anatomic Pathology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Robert T Jensen
- Digestive Diseases Branch, National Institutes of Diabetes, Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Tetsuhide Ito
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka
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Yoo YJ, Yang SJ, Hwang HK, Kang CM, Kim H, Lee WJ. Overestimated Oncologic Significance of Lymph Node Metastasis in G1 Nonfunctioning Neuroendocrine Tumor in the Left Side of the Pancreas. Medicine (Baltimore) 2015; 94:e1404. [PMID: 26356692 PMCID: PMC4616662 DOI: 10.1097/md.0000000000001404] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2015] [Revised: 07/03/2015] [Accepted: 07/26/2015] [Indexed: 12/11/2022] Open
Abstract
Recent studies have expounded on the oncologic significance of lymph node metastasis in nonfunctioning (NF) neuroendocrine tumors (NETs) of the pancreas and suggest regional lymph node dissection for treating pancreatic NET. We tested this recommendation in NF pancreatic NET-G1, as these tumors are generally small and suitable for function-preserving minimally invasive pancreatectomy.From January 2005 to December 2014, medical records of patients who underwent pancreatectomy for pathologically confirmed NF NET-G1 of the left side of the pancreas were retrospectively reviewed. Oncologic outcomes were compared between limited pancreatectomy and distal pancreatosplenectomy.Thirty-five patients (14 males and 21 females) with a mean age of 55.9 ± 11.4 years were enrolled in this study. Six patients (17.1%) underwent distal pancreatosplenectomy. Limited pancreatectomies comprised 15 spleen-preserving distal pancreatectomies (42.8%), 10 enucleations (28.6%), and 4 central pancreatectomies (11.4%). Lymph node metastasis was not found in 6 patients who underwent distal pancreatectomy with a splenectomy; meanwhile, the others were regarded as pNx since no lymph node retrieval was attempted during the limited pancreatectomy. Overall disease-free survival was 36.5 months (95% confidence interval [CI]: 25.9-47.1) and no tumor-related mortality was noted. Minimally invasive pancreatectomy (P = 0.557) and limited pancreatectomy (P = 0.758) showed no adverse impact in treating NF NET-G1 of the left side of the pancreas.The oncologic significance of lymph node metastasis is overestimated in NF NET-G1 of the left side of the pancreas. Routine conventional distal pancreatosplenectomy to retrieve regional lymph nodes may be too excessive in treating NF NET-G1 of the distal pancreas.
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Affiliation(s)
- Young Jin Yoo
- From the Department of Hepatobiliary and Pancreatic Surgery, Yonsei University College of Medicine (YJY, SJY, HKH, CMK, WJL); Department of Pathology, Yonsei University College of Medicine (HK); and Pancreaticobiliary Cancer Clinic, Yonsei Cancer Center, Severance Hospital, Seoul, Korea (SJY, HKH, CMK, HK, WJL)
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