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Do JE, Goh SK, Saxon S, Thomson JE. Pancreatic neuroendocrine tumour resection in circumportal pancreas: a rare anatomical anomaly with important surgical implications. BMJ Case Rep 2024; 17:e257013. [PMID: 38508604 PMCID: PMC10952872 DOI: 10.1136/bcr-2023-257013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/22/2024] Open
Abstract
Various congenital anomalies of the pancreas have been reported due to its complex embryological development involving the fusion of two separate buds. Circumportal pancreas is a rare anatomical anomaly where the pancreatic head and uncinate process fuse abnormally with the pancreatic body, encasing the portal vein and/or superior mesenteric vein completely. This anomaly poses several challenges to hepatobiliary surgeons, as the encasement of the portal vein by the abnormal pancreatic tissue makes an additional parenchymal transection necessary. Vascular variants have also been reported with circumportal pancreas, which, if not recognised preoperatively, can be catastrophic. Therefore, careful preoperative evaluation and planning are essential, to ensure safe pancreatic resection and recovery in a patient with circumportal pancreas. We present a case of a successful subtotal pancreatectomy and splenectomy in a patient with circumportal pancreas, for a suspected pancreatic duct adenocarcinoma. The aim of this case report is to contribute valuable insights that can aid hepatobiliary surgeons in enhancing their preoperative planning when encountered with patients with similar anatomical variances.
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Affiliation(s)
- Jee Eun Do
- Hepato-Pancreato-Biliary Unit, Royal Adelaide Hospital, Adelaide, South Australia, Australia
| | - Su Kah Goh
- Department of Surgery (The University of Melbourne), Austin Health, Heidelberg, Victoria, Australia
| | - Sarah Saxon
- SA Pathology, Royal Adelaide Hospital, Adelaide, South Australia, Australia
| | - John-Edwin Thomson
- Hepato-Pancreato-Biliary Unit, Royal Adelaide Hospital, Adelaide, South Australia, Australia
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Abdalla TSA, Bolm L, Klinkhammer-Schalke M, Zeissig SR, Kleihues van Tol K, Bronsert P, Litkevych S, Honselmann KC, Braun R, Gebauer J, Hummel R, Keck T, Wellner UF, Deichmann S. When Should Lymphadenectomy Be Performed in Non-Metastatic Pancreatic Neuroendocrine Tumors? A Population-Based Analysis of the German Clinical Cancer Registry Group. Cancers (Basel) 2024; 16:440. [PMID: 38275882 PMCID: PMC10814740 DOI: 10.3390/cancers16020440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 01/06/2024] [Accepted: 01/17/2024] [Indexed: 01/27/2024] Open
Abstract
BACKGROUND Patient selection for lymphadenectomy remains a controversial aspect in the treatment of pancreatic neuroendocrine tumors (pNETs), given the growing importance of parenchyma-sparing resections and minimally invasive procedures. METHODS This population-based analysis was derived from the German Cancer Registry Group during the period from 2000 to 2021. Patients with upfront resected non-functional non-metastatic pNETs were included. RESULTS Out of 5520 patients with pNET, 1006 patients met the inclusion criteria. Fifty-three percent of the patients were male. The median age was 64 ± 17 years. G1, G2, and G3 pNETs were found in 57%, 37%, and 7% of the patients, respectively. Lymph node metastasis (LNM) was present in 253 (24%) of all patients. LNM was an independent prognostic factor (HR 1.79, CI 95% 1.21-2.64, p = 0.001) for disease-free survival (DFS). The 3-, 5-, and 10-year disease-free survival in nodal negative tumors compared to nodal positive was 82% vs. 53%, 75% vs. 38%, and 48% vs. 16%. LNM was present in 5% of T1 tumors, 25% of T2 tumors, and 49% of T3-T4 tumors. In T1 tumors, G1 was the most predominant tumor grade (80%). However, in T2 tumors, G2 and G3 represented 44% and 5% of all tumors. LNM was associated with tumors located in the pancreatic head (p < 0.001), positive resection margin (p < 0.001), tumors larger than 2 cm (p < 0.001), and higher tumor grade (p < 0.001). The multivariable analysis showed that tumor size, tumor grade, and location were independent prognostic factors associated with LNM that could potentially be used to predict LNM preoperatively. CONCLUSION LNM is an independent negative prognostic factor for DFS in pNETs. Due to the low incidence of LNM in T1 tumors (5%), parenchyma-sparing surgery seems oncologically adequate in small G1 pNETs, while regional lymphadenectomy should be recommended in T2 or G2/G3 pNETs.
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Affiliation(s)
- Thaer S. A. Abdalla
- Department of Surgery, University Medical Center Schleswig-Holstein, Campus Lübeck, 23562 Lübeck, Germany
| | - Louisa Bolm
- Department of Surgery, University Medical Center Schleswig-Holstein, Campus Lübeck, 23562 Lübeck, Germany
| | - Monika Klinkhammer-Schalke
- Network for Care Quality and Research in Oncology (ADT), German Cancer Registry Group of the Society of German Tumor Centers, 14057 Berlin, Germany
| | - Sylke Ruth Zeissig
- Network for Care Quality and Research in Oncology (ADT), German Cancer Registry Group of the Society of German Tumor Centers, 14057 Berlin, Germany
- Institute of Clinical Epidemiology and Biometry (ICE-B), University of Würzburg, 97070 Würzburg, Germany
| | - Kees Kleihues van Tol
- Network for Care Quality and Research in Oncology (ADT), German Cancer Registry Group of the Society of German Tumor Centers, 14057 Berlin, Germany
| | - Peter Bronsert
- Department of Pathology, University Medical Center Freiburg, 79106 Freiburg, Germany
| | - Stanislav Litkevych
- Department of Surgery, University Medical Center Schleswig-Holstein, Campus Lübeck, 23562 Lübeck, Germany
| | - Kim C. Honselmann
- Department of Surgery, University Medical Center Schleswig-Holstein, Campus Lübeck, 23562 Lübeck, Germany
| | - Rüdiger Braun
- Department of Surgery, University Medical Center Schleswig-Holstein, Campus Lübeck, 23562 Lübeck, Germany
| | - Judith Gebauer
- Department of Internal Medicine I, University Medical Center Schleswig-Holstein, Campus Lübeck, 23562 Lübeck, Germany
| | - Richard Hummel
- Department of Surgery, University Medical Center Greifswald, 17475 Greifswald, Germany
| | - Tobias Keck
- Department of Surgery, University Medical Center Schleswig-Holstein, Campus Lübeck, 23562 Lübeck, Germany
| | - Ulrich Friedrich Wellner
- Department of Surgery, University Medical Center Schleswig-Holstein, Campus Lübeck, 23562 Lübeck, Germany
| | - Steffen Deichmann
- Department of Surgery, University Medical Center Schleswig-Holstein, Campus Lübeck, 23562 Lübeck, Germany
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Møller S, Langer SW, Slott C, Krogh J, Hansen CP, Kjaer A, Holmager P, Klose M, Garbyal RS, Knigge U, Andreassen M. Recurrence-Free Survival and Disease-Specific Survival in Patients with Pancreatic Neuroendocrine Neoplasms: A Single-Center Retrospective Study of 413 Patients. Cancers (Basel) 2023; 16:100. [PMID: 38201527 PMCID: PMC10777990 DOI: 10.3390/cancers16010100] [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: 10/27/2023] [Revised: 12/18/2023] [Accepted: 12/19/2023] [Indexed: 01/12/2024] Open
Abstract
INTRODUCTION The prognosis and impact of different prognostic factors in pancreatic neuroendocrine neoplasms (pNEN) remain controversial. AIM To investigate prognostic factors for recurrence-free survival and disease-specific survival in patients with pNEN, divided into three groups: patients undergoing surveillance (tumor size < 2 cm, group 1), patients followed after curative-intended surgery (group 2), and patients with unresectable disease or residual tumors after resection (group 3). METHOD A single-center retrospective study including consecutive patients over a 20-year period. Multivariate Cox regression analyses were performed to identify risk factors. RESULTS 413 patients were included, with a mean (SD) age of 62 ± 14 years. In group 1 (n = 51), median (IQR) follow-up was 29 (21-34) months, and tumor size was 1.0 (0.8-1.4) cm. One progressed and had a tumor resection. In group 2 (n = 165), follow-up 59 (31-102) months, median tumor size 2 (1.2-3.4) cm, median Ki-67 index 5 (3-10)%, the 5-year recurrence rate was 21%. Tumor size (p < 0.001), Ki-67 index (p = 0.02), and location in the pancreatic head (p < 0.001) were independent risk factors. In group 3 (n = 197), follow-up 19 (6-46) months, median tumor size 4.2 (2.6-7.0) cm, Ki-67 index 17 (9-64)%, the median disease-specific survival was 22 (6-75) months-99 in NET G1; 54 in NET G2; 14 in NET G3; and 6 months in neuroendocrine carcinomas (NEC). Age (p = 0.029), plasma chromogranin A (p = 0.014), and proliferation, expressed by grade (p = 0.001) and Ki-67 index (p < 0.001), were risk factors. CONCLUSION Growth in pNET < 2 cm requiring surgery was observed in 1/51. Tumor size, Ki-67 index, and location in the head were prognostic factors for disease recurrence, while age, plasma chromogranin A, and proliferation predicted mortality in patients with unresectable disease or residual tumors after resection.
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Affiliation(s)
- Stine Møller
- ENETS Center of Excellence, Copenhagen University Hospital—Rigshospitalet, 2100 Copenhagen, Denmark; (S.M.); (S.W.L.); (C.S.); (J.K.); (C.P.H.); (A.K.); (P.H.); (M.K.); (R.S.G.); (U.K.)
- Department of Endocrinology and Metabolism 7562, Copenhagen University Hospital—Rigshospitalet, 2100 Copenhagen, Denmark
| | - Seppo W. Langer
- ENETS Center of Excellence, Copenhagen University Hospital—Rigshospitalet, 2100 Copenhagen, Denmark; (S.M.); (S.W.L.); (C.S.); (J.K.); (C.P.H.); (A.K.); (P.H.); (M.K.); (R.S.G.); (U.K.)
- Department of Oncology, Copenhagen University Hospital—Rigshospitalet, 2100 Copenhagen, Denmark
- Department of Clinical Medicine, University of Copenhagen, 1172 Copenhagen, Denmark
| | - Cecilie Slott
- ENETS Center of Excellence, Copenhagen University Hospital—Rigshospitalet, 2100 Copenhagen, Denmark; (S.M.); (S.W.L.); (C.S.); (J.K.); (C.P.H.); (A.K.); (P.H.); (M.K.); (R.S.G.); (U.K.)
- Department of Endocrinology and Metabolism 7562, Copenhagen University Hospital—Rigshospitalet, 2100 Copenhagen, Denmark
| | - Jesper Krogh
- ENETS Center of Excellence, Copenhagen University Hospital—Rigshospitalet, 2100 Copenhagen, Denmark; (S.M.); (S.W.L.); (C.S.); (J.K.); (C.P.H.); (A.K.); (P.H.); (M.K.); (R.S.G.); (U.K.)
- Department of Endocrinology and Metabolism 7562, Copenhagen University Hospital—Rigshospitalet, 2100 Copenhagen, Denmark
- Department of Clinical Medicine, University of Copenhagen, 1172 Copenhagen, Denmark
| | - Carsten Palnæs Hansen
- ENETS Center of Excellence, Copenhagen University Hospital—Rigshospitalet, 2100 Copenhagen, Denmark; (S.M.); (S.W.L.); (C.S.); (J.K.); (C.P.H.); (A.K.); (P.H.); (M.K.); (R.S.G.); (U.K.)
- Department of Surgery and Transplantation, Copenhagen University Hospital—Rigshospitalet, 2100 Copenhagen, Denmark
| | - Andreas Kjaer
- ENETS Center of Excellence, Copenhagen University Hospital—Rigshospitalet, 2100 Copenhagen, Denmark; (S.M.); (S.W.L.); (C.S.); (J.K.); (C.P.H.); (A.K.); (P.H.); (M.K.); (R.S.G.); (U.K.)
- Department of Clinical Physiology and Nuclear Medicine & Cluster for Molecular Imaging, Copenhagen University Hospital—Rigshospitalet, 2100 Copenhagen, Denmark
- Department of Biomedical Sciences, University of Copenhagen, 1172 Copenhagen, Denmark
| | - Pernille Holmager
- ENETS Center of Excellence, Copenhagen University Hospital—Rigshospitalet, 2100 Copenhagen, Denmark; (S.M.); (S.W.L.); (C.S.); (J.K.); (C.P.H.); (A.K.); (P.H.); (M.K.); (R.S.G.); (U.K.)
- Department of Endocrinology and Metabolism 7562, Copenhagen University Hospital—Rigshospitalet, 2100 Copenhagen, Denmark
| | - Marianne Klose
- ENETS Center of Excellence, Copenhagen University Hospital—Rigshospitalet, 2100 Copenhagen, Denmark; (S.M.); (S.W.L.); (C.S.); (J.K.); (C.P.H.); (A.K.); (P.H.); (M.K.); (R.S.G.); (U.K.)
- Department of Endocrinology and Metabolism 7562, Copenhagen University Hospital—Rigshospitalet, 2100 Copenhagen, Denmark
| | - Rajendra Singh Garbyal
- ENETS Center of Excellence, Copenhagen University Hospital—Rigshospitalet, 2100 Copenhagen, Denmark; (S.M.); (S.W.L.); (C.S.); (J.K.); (C.P.H.); (A.K.); (P.H.); (M.K.); (R.S.G.); (U.K.)
- Department of Pathology, Copenhagen University Hospital—Rigshospitalet, 2100 Copenhagen, Denmark
| | - Ulrich Knigge
- ENETS Center of Excellence, Copenhagen University Hospital—Rigshospitalet, 2100 Copenhagen, Denmark; (S.M.); (S.W.L.); (C.S.); (J.K.); (C.P.H.); (A.K.); (P.H.); (M.K.); (R.S.G.); (U.K.)
- Department of Endocrinology and Metabolism 7562, Copenhagen University Hospital—Rigshospitalet, 2100 Copenhagen, Denmark
- Department of Surgery and Transplantation, Copenhagen University Hospital—Rigshospitalet, 2100 Copenhagen, Denmark
| | - Mikkel Andreassen
- ENETS Center of Excellence, Copenhagen University Hospital—Rigshospitalet, 2100 Copenhagen, Denmark; (S.M.); (S.W.L.); (C.S.); (J.K.); (C.P.H.); (A.K.); (P.H.); (M.K.); (R.S.G.); (U.K.)
- Department of Endocrinology and Metabolism 7562, Copenhagen University Hospital—Rigshospitalet, 2100 Copenhagen, Denmark
- Department of Clinical Medicine, University of Copenhagen, 1172 Copenhagen, Denmark
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Helderman NC, Suerink M, Kilinç G, van den Berg JG, Nielsen M, Tesselaar MET. Relation between WHO Classification and Location- and Functionality-Based Classifications of Neuroendocrine Neoplasms of the Digestive Tract. Neuroendocrinology 2023; 114:120-133. [PMID: 37690447 PMCID: PMC10836754 DOI: 10.1159/000534035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 08/21/2023] [Indexed: 09/12/2023]
Abstract
Practice of neuroendocrine neoplasms (NENs) of the digestive tract, which comprise of a highly diverse group of tumors with a rising incidence, faces multiple biological, diagnostic, and therapeutic issues. Part of these issues is due to misuse and misinterpretation of the classification and terminology of NENs of the digestive tract, which make it increasingly challenging to evaluate and compare the literature. For instance, grade 3 neuroendocrine tumors (NETs) are frequently referred to as neuroendocrine carcinomas (NECs) and vice versa, while NECs are, by definition, high grade and therefore constitute a separate entity from NETs. Moreover, the term NET is regularly misused to describe NENs in general, and NETs are frequently referred to as benign, while they should always be considered malignancies as they do have metastatic potential. To prevent misconceptions in future NEN-related research, we reviewed the most recent terminology used to classify NENs of the digestive tract and created an overview that combines the classification of these NENs according to the World Health Organization (WHO) with location- and functionality-based classifications. This overview may help clinicians and researchers in understanding the current literature and could serve as a guide in the clinic as well as for writing future studies on NENs of the digestive tract. In this way, we aim for the universal use of terminology, thereby providing an efficient foundation for future NEN-related research.
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Affiliation(s)
- Noah C Helderman
- Department of Clinical Genetics, Leiden University Medical Centre, Leiden, The Netherlands
| | - Manon Suerink
- Department of Clinical Genetics, Leiden University Medical Centre, Leiden, The Netherlands
| | - Gül Kilinç
- Department of Infectious Diseases, Leiden University Medical Centre, Leiden, The Netherlands
| | - José G van den Berg
- Department of Pathology, Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Maartje Nielsen
- Department of Clinical Genetics, Leiden University Medical Centre, Leiden, The Netherlands
| | - Margot E T Tesselaar
- Department of Medical Oncology, Netherlands Cancer Institute, Amsterdam, The Netherlands
- Department of Gastrointestinal Oncology, Netherlands Cancer Institute, Amsterdam, The Netherlands
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5
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Dong Y, Yang DH, Tian XF, Lou WH, Wang HZ, Chen S, Qiu YJ, Wang W, Dietrich CF. Pancreatic neuroendocrine tumor: prediction of tumor grades by radiomics models based on ultrasound images. Br J Radiol 2023; 96:20220783. [PMID: 37393539 PMCID: PMC10461281 DOI: 10.1259/bjr.20220783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 06/16/2023] [Accepted: 06/20/2023] [Indexed: 07/03/2023] Open
Abstract
OBJECTIVE We aimed to investigate whether the radiomics analysis based on B-mode ultrasound (BMUS) images could predict histopathological tumor grades in pancreatic neuroendocrine tumors (pNETs). METHODS A total of 64 patients with surgery and histopathologically confirmed pNETs were retrospectively included (34 male and 30 female, mean age 52.4 ± 12.2 years). Patients were divided into training cohort (n = 44) and validation cohort (n = 20). All pNETs were classified into Grade 1 (G1), Grade 2 (G2), and Grade 3 (G3) tumors based on the Ki-67 proliferation index and the mitotic activity according to WHO 2017 criteria. Maximum relevance minimum redundancy, least absolute shrinkage and selection operator were used for feature selection. Receiver operating characteristic curve analysis was used to evaluate the model performance. RESULTS Finally, 18 G1 pNETs, 35 G2 pNETs, and 11 G3 pNETs patients were included. The radiomic score derived from BMUS images to predict G2/G3 from G1 displayed a good performance with an area under the receiver operating characteristic curve of 0.844 in the training cohort, and 0.833 in the testing cohort. The radiomic score achieved an accuracy of 81.8% in the training cohort and 80.0% in the testing cohort, a sensitivity of 0.750 and 0.786, a specificity of 0.833 and 0.833 in the training/testing cohorts. Clinical benefit of the score also exhibited superior usefulness of the radiomic score, as shown by the decision curve analysis. CONCLUSIONS Radiomic data constructed from BMUS images have the potential for predicting histopathological tumor grades in patients with pNETs. ADVANCES IN KNOWLEDGE The radiomic model constructed from BMUS images has the potential for predicting histopathological tumor grades and Ki-67 proliferation indexes in patients with pNETs.
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Affiliation(s)
| | - Dao-Hui Yang
- Department of ultrasound, Xiamen Branch, Zhongshan Hospital, Fudan University, Xiamen, China
| | | | - Wen-Hui Lou
- Department of Pancreatic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Han-Zhang Wang
- Precision Health Institute, GE Healthcare China, Shanghai, China
| | | | | | - Wenping Wang
- Department of Ultrasound, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Christoph F. Dietrich
- Department General Internal Medicine, Hirslanden Clinics Beau-Site, Salem and Permancence, Bern, Switzerland
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Maio F, Pasqualino V, Bertana L, Venturini S, Cantoni V, Fusaro M, Morana G. Pancreatic cancer detection with a non-contrast MR protocol: is it reliable? LA RADIOLOGIA MEDICA 2023; 128:1035-1046. [PMID: 37515631 PMCID: PMC10474201 DOI: 10.1007/s11547-023-01680-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 07/05/2023] [Indexed: 07/31/2023]
Abstract
PURPOSE The pancreatic cancer (PC) is the 4th leading cancer-related death, becoming the second one by 2030, with a 5 year survival rate of 8%. Considering its increased incidence in high-risk categories compared to the general population, we aimed to validate a non-contrast MR protocol, to detect PC in its earliest phase, which could be suitable as a screening tool in high-risk patients. MATERIALS AND METHODS In this retrospective study, we selected 200 patients (> 40 years) from our radiological database, which performed upper abdominal MRI between 2012 and 2017. 100 were negative for pancreatic lesions and 100 positive for pancreatic lesion (< 30 mm). The latter group included: 40 PDAC (pancreatic adenocarcinoma), 42 BD-IPMN (Branch Duct- Intraductal Papillary Mucinous Neoplasm), 10 PNET(pancreatic neuroendocrine tumor), 4 SCN(serous cystic neoplasm), 3 IPS(intrapancreatic spleen), 1 MCN(mucinous cystic neoplasm). Three readers (R1, R2 and R3) with a high, medium and low experience, respectively, analysed, first, the non-contrast MR sequences (single-shot T2w breath-hold, GE T1w FS, DWI and 2D/3D MRCP), and then the standard MR protocol, independently, randomly and anonymously. Readers identified or excluded the presence of pancreatic lesion, in both reading sessions. These results were compared with the histopathological diagnosis, and then divided into 3 different classes of lesions: all lesions, pancreatic adenocarcinoma and solid lesion. Mcnemar's test was used to compare the results. The inter-observer agreement was determined according to the kappa statistic in both protocols, and then the inter-protocol agreement was calculated. RESULTS The non-contrast MR protocol has reached statistical parameters values ranging between 83% in SE (sensitivity) by R3 and 99% in NPV (negative predictive value) by R1. The standard MR protocol has reported slight increasing statistical parameters compared to those of the proposed one. However, there are not significant statistical differences between the both protocols. The proposed non-contrast MR protocol has reported the highest NPVs in the PDAC group detection (R1: 99%, R2: 99%, R3: 98%). In all groups of lesions, the agreement between the two protocols was excellent for each Reader ranging from 96 to 98%. CONCLUSION The proposed non-contrast MR protocol showed high PC detection values and a time execution ≤ 20 min. Therefore, it can be proposed as a screening tool in high-risk patients.
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Affiliation(s)
- Francesca Maio
- Department of Advanced Biomedical Sciences, Federico II University, Via Pansini 5, 80131 Naples, Italy
- National Cancer Institute IRCCS “Fondazione G. Pascale” Radiology Department, Via Semmola 52, 80131 Naples, Italy
| | - Vincenzo Pasqualino
- Department of Radiology, Padua University, Via 8 Febbraio 1848, 2, 35122 Padua, Italy
| | - Luca Bertana
- Department of Radiology, General Hospital Ca’ Foncello, Piazzale dell’ Ospedale 1, 31100 Treviso, Italy
| | - Silvia Venturini
- Department of Radiology, General Hospital Ca’ Foncello, Piazzale dell’ Ospedale 1, 31100 Treviso, Italy
| | - Valeria Cantoni
- Department of Advanced Biomedical Sciences, Federico II University, Via Pansini 5, 80131 Naples, Italy
| | - Michele Fusaro
- Department of Radiology, General Hospital Ca’ Foncello, Piazzale dell’ Ospedale 1, 31100 Treviso, Italy
| | - Giovanni Morana
- Department of Radiology, General Hospital Ca’ Foncello, Piazzale dell’ Ospedale 1, 31100 Treviso, Italy
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Kudelka MR, Abou-Alfa GK, O’Reilly EM, Foote MB, Sirohi B, Elias R, Shamseddine A, Paroder V, Moussa AM, Cohen P, Ganesh K. Metastatic well differentiated serotonin-producing pancreatic neuroendocrine tumor with carcinoid heart disease: a case report. J Gastrointest Oncol 2023; 14:1878-1886. [PMID: 37720425 PMCID: PMC10502540 DOI: 10.21037/jgo-22-909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 06/08/2023] [Indexed: 09/19/2023] Open
Abstract
Background Less than two percent of pancreatic neuroendocrine tumors (NETs) produce serotonin. Serotonin can cause carcinoid syndrome and less commonly carcinoid heart disease (CHD). CHD is associated with increased mortality and requires a more aggressive approach. Here we present a rare case of a serotonin-producing pancreatic NET complicated by CHD at presentation and discuss timing of systemic therapy, liver-directed therapy, and heart failure management. Case Description A 36-year-old white man presented with diarrhea, lower extremity edema, and exertional dyspnea. He was found to have a well-differentiated serotonin-producing pancreatic NETs grade three with bilobar liver metastasis complicated by carcinoid syndrome and CHD. His symptoms and disease burden improved with somatostatin analog and liver-directed therapy with bland embolization to control carcinoid symptoms and obtain rapid hormonal control to prevent progression of CHD. He concurrently received diuretics to manage his heart failure and was considered for valvular replacement surgery, which was deferred for optimal hormonal control. Conclusions Our case highlights the importance of multidisciplinary care for patients with pancreatic NETs and early identification and management of CHD. Although uncommon, serotonin-producing pancreatic NETs can present with CHD and require combination of somatostatin analogs, liver-directed therapy, and heart failure management.
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Affiliation(s)
- Matthew R. Kudelka
- Memorial Sloan Kettering Cancer Center, New York, NY, USA
- The Rockefeller University, New York, NY, USA
| | - Ghassan K. Abou-Alfa
- Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Weill Medical College, Cornell University, New York, NY, USA
| | - Eileen M. O’Reilly
- Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Weill Medical College, Cornell University, New York, NY, USA
| | - Michael B. Foote
- Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Weill Medical College, Cornell University, New York, NY, USA
| | | | - Rawad Elias
- Hartford HealthCare Cancer Institute, Hartford, CT, USA
| | - Ali Shamseddine
- American University of Beirut Medical Center, Beirut, Lebanon
| | - Viktoriya Paroder
- Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Weill Medical College, Cornell University, New York, NY, USA
| | - Amgad M. Moussa
- Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Weill Medical College, Cornell University, New York, NY, USA
| | - Paul Cohen
- Memorial Sloan Kettering Cancer Center, New York, NY, USA
- The Rockefeller University, New York, NY, USA
| | - Karuna Ganesh
- Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Weill Medical College, Cornell University, New York, NY, USA
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8
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Vogele D, Schmidt SA, Gnutzmann D, Thaiss WM, Ettrich TJ, Kornmann M, Beer M, Juchems MS. Gastroenteropancreatic Neuroendocrine Tumors-Current Status and Advances in Diagnostic Imaging. Diagnostics (Basel) 2023; 13:2741. [PMID: 37685279 PMCID: PMC10486652 DOI: 10.3390/diagnostics13172741] [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: 07/17/2023] [Revised: 08/16/2023] [Accepted: 08/21/2023] [Indexed: 09/10/2023] Open
Abstract
Gastroenteropancreatic neuroendocrine neoplasia (GEP-NEN) is a heterogeneous and complex group of tumors that are often difficult to classify due to their heterogeneity and varying locations. As standard radiological methods, ultrasound, computed tomography (CT), magnetic resonance imaging (MRI), and positron emission tomography-computed tomography (PET/CT) are available for both localization and staging of NEN. Nuclear medical imaging methods with somatostatin analogs are of great importance since radioactively labeled receptor ligands make tumors visible with high sensitivity. CT and MRI have high detection rates for GEP-NEN and have been further improved by developments such as diffusion-weighted imaging. However, nuclear medical imaging methods are superior in detection, especially in gastrointestinal NEN. It is important for radiologists to be familiar with NEN, as it can occur ubiquitously in the abdomen and should be identified as such. Since GEP-NEN is predominantly hypervascularized, a biphasic examination technique is mandatory for contrast-enhanced cross-sectional imaging. PET/CT with somatostatin analogs should be used as the subsequent method.
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Affiliation(s)
- Daniel Vogele
- Department of Diagnostic and Interventional Radiology, Ulm University Medical Center, Albert-Einstein-Allee 23, 89081 Ulm, Germany; (S.A.S.); (W.M.T.); (M.B.)
| | - Stefan A. Schmidt
- Department of Diagnostic and Interventional Radiology, Ulm University Medical Center, Albert-Einstein-Allee 23, 89081 Ulm, Germany; (S.A.S.); (W.M.T.); (M.B.)
| | - Daniel Gnutzmann
- Department of Diagnostic and Interventional Radiology, Konstanz Hospital, Mainaustraße 35, 78464 Konstanz, Germany; (D.G.); (M.S.J.)
| | - Wolfgang M. Thaiss
- Department of Diagnostic and Interventional Radiology, Ulm University Medical Center, Albert-Einstein-Allee 23, 89081 Ulm, Germany; (S.A.S.); (W.M.T.); (M.B.)
- Department of Nuclear Medicine, Ulm University Medical Center, Albert-Einstein-Allee 23, 89081 Ulm, Germany
| | - Thomas J. Ettrich
- Department of Internal Medicine I, Ulm University Medical Center, Albert-Einstein-Allee 23, 89081 Ulm, Germany;
- i2SouI—Innovative Imaging in Surgical Oncology Ulm, University Hospital of Ulm, Albert-Einstein-Allee 23, 89081 Ulm, Germany;
| | - Marko Kornmann
- i2SouI—Innovative Imaging in Surgical Oncology Ulm, University Hospital of Ulm, Albert-Einstein-Allee 23, 89081 Ulm, Germany;
- Department of General and Visceral Surgery, Ulm University Medical Center, Albert-Einstein-Allee 23, 89081 Ulm, Germany
| | - Meinrad Beer
- Department of Diagnostic and Interventional Radiology, Ulm University Medical Center, Albert-Einstein-Allee 23, 89081 Ulm, Germany; (S.A.S.); (W.M.T.); (M.B.)
- i2SouI—Innovative Imaging in Surgical Oncology Ulm, University Hospital of Ulm, Albert-Einstein-Allee 23, 89081 Ulm, Germany;
| | - Markus S. Juchems
- Department of Diagnostic and Interventional Radiology, Konstanz Hospital, Mainaustraße 35, 78464 Konstanz, Germany; (D.G.); (M.S.J.)
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Elkelany OO, Karaisz FG, Davies B, Krishna SG. An Overview of Pancreatic Neuroendocrine Tumors and an Update on Endoscopic Techniques for Their Management. Curr Oncol 2023; 30:7566-7580. [PMID: 37623030 PMCID: PMC10453483 DOI: 10.3390/curroncol30080549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 07/25/2023] [Accepted: 07/31/2023] [Indexed: 08/26/2023] Open
Abstract
The growing importance of advanced endoscopy in the diagnosis and treatment of pancreatic neuroendocrine neoplasms (PanNETs) necessitates a comprehensive understanding of various biochemical markers, genetic testing methods, radiological techniques, and treatment approaches that encompass multiple disciplines within and beyond gastrointestinal oncology. This review aims to highlight key aspects of these topics, with a specific focus on emerging EUS-guided procedures for the management of PanNETs.
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Affiliation(s)
- Osama O. Elkelany
- Department of Internal Medicine, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
| | - Fred G. Karaisz
- Division of Gastroenterology, Hepatology and Nutrition, Department of Internal Medicine, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
| | - Benjamin Davies
- College of Medicine, The Ohio State University, Columbus, OH 43201, USA
| | - Somashekar G. Krishna
- Division of Gastroenterology, Hepatology and Nutrition, Department of Internal Medicine, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
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10
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Abdalla TSA, Klinkhammer-Schalke M, Zeissig SR, Tol KKV, Honselmann KC, Braun R, Bolm L, Lapshyn H, Litkevych S, Zemskov S, Begum N, Kulemann B, Hummel R, Wellner UF, Keck T, Deichmann S. Prognostic factors after resection of locally advanced non-functional pancreatic neuroendocrine neoplasm: an analysis from the German Cancer Registry Group of the Society of German Tumor Centers. J Cancer Res Clin Oncol 2023:10.1007/s00432-023-04785-0. [PMID: 37095413 PMCID: PMC10374814 DOI: 10.1007/s00432-023-04785-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Accepted: 04/15/2023] [Indexed: 04/26/2023]
Abstract
OBJECTIVE The available literature regarding outcome after pancreatic resection in locally advanced non-functional pNEN (LA-pNEN) is sparse. Therefore, this study evaluates the current survival outcomes and prognostic factors in after resection of LA-pNEN. MATERIALS AND METHODS This population-based analysis was derived from 17 German cancer registries from 2000 to 2019. Patients with upfront resected non-functional non-metastatic LA-pNEN were included. RESULTS Out of 2776 patients with pNEN, 277 met the inclusion criteria. 137 (45%) of the patients were female. The median age was 63 ± 18 years. Lymph node metastasis was present in 45%. G1, G2 and G3 pNEN were found in 39%, 47% and 14% of the patients, respectively. Resection of LA-pNEN resulted in favorable 3-, 5- and 10-year overall survival of 79%, 74%, and 47%. Positive resection margin was the only potentially modifiable independent prognostic factor for overall survival (HR 1.93, 95% CI 1.71-3.69, p value = 0.046), whereas tumor grade G3 (HR 5.26, 95% CI 2.09-13.25, p value < 0.001) and lymphangiosis (HR 2.35, 95% CI 1.20-4.59, p value = 0.012) were the only independent prognostic factors for disease-free survival. CONCLUSION Resection of LA-pNEN is feasible and associated with favorable overall survival. G1 LA-pNEN with negative resection margins and absence of lymph node metastasis and lymphangiosis might be considered as cured, while those not fulfilling these criteria might be considered as a high-risk group for disease progression. Herein, negative resection margins represent the only potentially modifiable prognostic factor in LA-pNEN but seem to be influenced by tumor grade.
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Affiliation(s)
- Thaer S A Abdalla
- Department of Surgery, University Medical Center Schleswig-Holstein, Campus Lübeck, Ratzeburger Allee 160, 23564, Lübeck, Germany.
| | - Monika Klinkhammer-Schalke
- Network for Care, Quality and Research in Oncology (ADT), German Cancer Registry Group of the Society of German Tumor Centers, Berlin, Germany
| | - Sylke Ruth Zeissig
- Network for Care, Quality and Research in Oncology (ADT), German Cancer Registry Group of the Society of German Tumor Centers, Berlin, Germany
- Institute of Clinical Epidemiology and Biometry (ICE-B), University of Würzburg, Würzburg, Germany
| | - Kees Kleihues-van Tol
- Network for Care, Quality and Research in Oncology (ADT), German Cancer Registry Group of the Society of German Tumor Centers, Berlin, Germany
| | - Kim C Honselmann
- Department of Surgery, University Medical Center Schleswig-Holstein, Campus Lübeck, Ratzeburger Allee 160, 23564, Lübeck, Germany
| | - Rüdiger Braun
- Department of Surgery, University Medical Center Schleswig-Holstein, Campus Lübeck, Ratzeburger Allee 160, 23564, Lübeck, Germany
| | - Louisa Bolm
- Department of Surgery, University Medical Center Schleswig-Holstein, Campus Lübeck, Ratzeburger Allee 160, 23564, Lübeck, Germany
| | - Hryhoriy Lapshyn
- Department of Surgery, University Medical Center Schleswig-Holstein, Campus Lübeck, Ratzeburger Allee 160, 23564, Lübeck, Germany
| | - Stanislav Litkevych
- Department of Surgery, University Medical Center Schleswig-Holstein, Campus Lübeck, Ratzeburger Allee 160, 23564, Lübeck, Germany
| | - Sergii Zemskov
- Department of General Surgery, Bogomolets National Medical University, Kiev, 01601, Ukraine
| | - Nehara Begum
- Department of Surgery, University Medical Center Schleswig-Holstein, Campus Lübeck, Ratzeburger Allee 160, 23564, Lübeck, Germany
- Department of Surgery, Johannes-Wesling-Klinikum Minden, Minden, Germany
| | - Birte Kulemann
- Department of Surgery, University Medical Center Schleswig-Holstein, Campus Lübeck, Ratzeburger Allee 160, 23564, Lübeck, Germany
| | - Richard Hummel
- Department of Surgery, University Medical Center Schleswig-Holstein, Campus Lübeck, Ratzeburger Allee 160, 23564, Lübeck, Germany
| | - Ulrich Friedrich Wellner
- Department of Surgery, University Medical Center Schleswig-Holstein, Campus Lübeck, Ratzeburger Allee 160, 23564, Lübeck, Germany
| | - Tobias Keck
- Department of Surgery, University Medical Center Schleswig-Holstein, Campus Lübeck, Ratzeburger Allee 160, 23564, Lübeck, Germany.
| | - Steffen Deichmann
- Department of Surgery, University Medical Center Schleswig-Holstein, Campus Lübeck, Ratzeburger Allee 160, 23564, Lübeck, Germany
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11
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Sulciner ML, Clancy TE. Surgical Management of Pancreatic Neuroendocrine Tumors. Cancers (Basel) 2023; 15:cancers15072006. [PMID: 37046665 PMCID: PMC10093271 DOI: 10.3390/cancers15072006] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 03/23/2023] [Accepted: 03/24/2023] [Indexed: 03/30/2023] Open
Abstract
Pancreatic neuroendocrine tumors (PNETs) are relatively uncommon malignancies, characterized as either functional or nonfunctional secondary to their secretion of biologically active hormones. A wide range of clinical behavior can be seen, with the primary prognostic indicator being tumor grade as defined by the Ki67 proliferation index and mitotic index. Surgery is the primary treatment modality for PNETs. While functional PNETs should undergo resection for symptom control as well as potential curative intent, nonfunctional PNETs are increasingly managed nonoperatively. There is increasing data to suggest small, nonfunctional PNETs (less than 2 cm) are appropriate follow with nonoperative active surveillance. Evidence supports surgical management of metastatic disease if possible, and occasionally even surgical management of the primary tumor in the setting of widespread metastases. In this review, we highlight the evolving surgical management of local and metastatic PNETs.
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12
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Zhang WH, Xu JF, Hu YH, Qin Y, Chen J, Yu XJ, Xu XW, Ji SR. The Surgical and Therapeutic Activities of Non-Functional Pancreatic Neuroendocrine Tumors at a High-Volume Institution. Cancers (Basel) 2023; 15:cancers15071955. [PMID: 37046616 PMCID: PMC10093673 DOI: 10.3390/cancers15071955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 03/17/2023] [Accepted: 03/21/2023] [Indexed: 04/14/2023] Open
Abstract
BACKGROUND This study aimed to summarize the surgical and therapeutic activities of non-functional pancreatic neuroendocrine tumors (NF-PanNETs) and perform survival analyses of a 15-year single-institutional cohort of NF-PanNETs. METHODS In total, 1001 patients with neuroendocrine neoplasms treated at Fudan University Shanghai Cancer Center were screened for inclusion, and 509 patients with NF-PanNETs from 2006 to 2020 were included. For time trend analyses, the 15-year study period was randomly divided into three periods. Survival analyses used the Kaplan-Meier method and Cox regression models. RESULTS The total number of resected NF-PanNETs increased over the 15-year study period, from 5 resections in 2006 to 94 resections in 2020. A significant decrease in the tumor size was observed, from a mean of 4.0 cm to 3.3 cm, and to 3.0 cm in the most recent period (p = 0.006). Minimally invasive techniques gradually increased from 3.5% to 12.9%, and finally to 46.4% in the most recent period (p < 0.001). In non-metastatic and resected tumors, the tumor size (p < 0.001), positive lymph node (p < 0.001), adjuvant treatment (p = 0.048), and tumor grade (p < 0.001) were independent prognostic factors for recurrence-free survival (RFS). The microvascular invasion (p = 0.024) and tumor grade (p = 0.013) were independent prognostic factors for overall survival (OS). A malignant transformation from NET into neuroendocrine carcinoma was observed. CONCLUSIONS An increasing number of NF-PanNETs resection and minimally invasive surgery was shown. In non-metastatic and resected tumors NF-PanNETs, tumor size, positive lymph node, adjuvant treatment, and tumor grade were independent predictors of RFS. Microvascular invasion and tumor grade were independent prognostic factors for OS.
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Affiliation(s)
- Wu-Hu Zhang
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai 200032, China
- Center for Neuroendocrine Tumors, Fudan University Shanghai Cancer Center, Shanghai 200032, China
- Shanghai Pancreatic Cancer Institute, Shanghai 200032, China
- Pancreatic Cancer Institute, Fudan University, Shanghai 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Jun-Feng Xu
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai 200032, China
- Center for Neuroendocrine Tumors, Fudan University Shanghai Cancer Center, Shanghai 200032, China
- Shanghai Pancreatic Cancer Institute, Shanghai 200032, China
- Pancreatic Cancer Institute, Fudan University, Shanghai 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Yu-Heng Hu
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai 200032, China
- Center for Neuroendocrine Tumors, Fudan University Shanghai Cancer Center, Shanghai 200032, China
- Shanghai Pancreatic Cancer Institute, Shanghai 200032, China
- Pancreatic Cancer Institute, Fudan University, Shanghai 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Yi Qin
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai 200032, China
- Center for Neuroendocrine Tumors, Fudan University Shanghai Cancer Center, Shanghai 200032, China
- Shanghai Pancreatic Cancer Institute, Shanghai 200032, China
- Pancreatic Cancer Institute, Fudan University, Shanghai 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Jie Chen
- Center for Neuroendocrine Tumors, Fudan University Shanghai Cancer Center, Shanghai 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
- Department of Head & Neck Tumors and Neuroendocrine Tumors, Fudan University Shanghai Cancer Center, Shanghai 200032, China
| | - Xian-Jun Yu
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai 200032, China
- Center for Neuroendocrine Tumors, Fudan University Shanghai Cancer Center, Shanghai 200032, China
- Shanghai Pancreatic Cancer Institute, Shanghai 200032, China
- Pancreatic Cancer Institute, Fudan University, Shanghai 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Xiao-Wu Xu
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai 200032, China
- Center for Neuroendocrine Tumors, Fudan University Shanghai Cancer Center, Shanghai 200032, China
- Shanghai Pancreatic Cancer Institute, Shanghai 200032, China
- Pancreatic Cancer Institute, Fudan University, Shanghai 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Shun-Rong Ji
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai 200032, China
- Center for Neuroendocrine Tumors, Fudan University Shanghai Cancer Center, Shanghai 200032, China
- Shanghai Pancreatic Cancer Institute, Shanghai 200032, China
- Pancreatic Cancer Institute, Fudan University, Shanghai 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
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Diagnostic Management of Gastroenteropancreatic Neuroendocrine Neoplasms: Technique Optimization and Tips and Tricks for Radiologists. Tomography 2023; 9:217-246. [PMID: 36828370 PMCID: PMC9958666 DOI: 10.3390/tomography9010018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 01/22/2023] [Accepted: 01/23/2023] [Indexed: 01/31/2023] Open
Abstract
Gastroenteropancreatic neuroendocrine neoplasms (GEP-NENs) comprise a heterogeneous group of neoplasms, which derive from cells of the diffuse neuroendocrine system that specializes in producing hormones and neuropeptides and arise in most cases sporadically and, to a lesser extent, in the context of complex genetic syndromes. Furthermore, they are primarily nonfunctioning, while, in the case of insulinomas, gastrinomas, glucagonomas, vipomas, and somatostatinomas, they produce hormones responsible for clinical syndromes. The GEP-NEN tumor grade and cell differentiation may result in different clinical behaviors and prognoses, with grade one (G1) and grade two (G2) neuroendocrine tumors showing a more favorable outcome than grade three (G3) NET and neuroendocrine carcinoma. Two critical issues should be considered in the NEN diagnostic workup: first, the need to identify the presence of the tumor, and, second, to define the primary site and evaluate regional and distant metastases. Indeed, the primary site, stage, grade, and function are prognostic factors that the radiologist should evaluate to guide prognosis and management. The correct diagnostic management of the patient includes a combination of morphological and functional evaluations. Concerning morphological evaluations, according to the consensus guidelines of the European Neuroendocrine Tumor Society (ENETS), computed tomography (CT) with a contrast medium is recommended. Contrast-enhanced magnetic resonance imaging (MRI), including diffusion-weighted imaging (DWI), is usually indicated for use to evaluate the liver, pancreas, brain, and bones. Ultrasonography (US) is often helpful in the initial diagnosis of liver metastases, and contrast-enhanced ultrasound (CEUS) can solve problems in characterizing the liver, as this tool can guide the biopsy of liver lesions. In addition, intraoperative ultrasound is an effective tool during surgical procedures. Positron emission tomography (PET-CT) with FDG for nonfunctioning lesions and somatostatin analogs for functional lesions are very useful for identifying and evaluating metabolic receptors. The detection of heterogeneity in somatostatin receptor (SSTR) expression is also crucial for treatment decision making. In this narrative review, we have described the role of morphological and functional imaging tools in the assessment of GEP-NENs according to current major guidelines.
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14
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You T, Tang H, Xu X, Ying H, Sun Z, Cheng Y, Bai C. Patients with non-functional metastatic G2 pancreatic neuroendocrine tumor benefit from palliative surgery: A 20-year single-center retrospective analysis. J Neuroendocrinol 2022; 34:e13211. [PMID: 36373196 DOI: 10.1111/jne.13211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Revised: 09/23/2022] [Accepted: 10/19/2022] [Indexed: 01/06/2023]
Abstract
Pancreatic neuroendocrine tumor (pNET) is the most common subset (31.5%) of gastroenteropancreatic neuroendocrine tumor in China. Based on real-world data from a single center, the present study aimed to evaluate the influence of clinical characteristics, medical treatment and surgery on the survival of non-functional metastatic G2 pNET. In total, 114 metastatic non-functional G2 pNET patients, who were treated and followed up in the Department of Medical Oncology, Peking Union Medical College Hospital (PUMCH) from 2001 until 2019, were analyzed retrospectively. The primary endpoint, overall survival (OS), was calculated from the date of diagnosis to the date of death. The second endpoint, progression-free survival (PFS), was calculated from the date of diagnosis to the date of disease progression. Statistical data were analyzed to evaluate the effects of a clinical characteristic, medical treatment and surgery on OS and PFS. Sixty-nine (60.5%) patients were male and 87 (76.3%) were aged < 60 years. The liver was the most common metastatic organ, with a total of 84 cases (73.7%). With respect to surgery, 32 (28.1%) patients underwent radical surgery and 37 (32.5%) underwent palliative surgery. Survival analysis showed that the 5-year and 10-year survival rates were 79.36% and 70.0%, respectively. Univariate and multivariate Cox regression analyses suggested that both radical (p < .001/.003) and palliative surgery (p < .001/.002) significantly prolonged OS, as revealed by the Kaplan-Meier test (p < .001). Subgroup analysis showed that palliative resection also significantly improves the prognosis in patients with multiple liver metastases. However, the first-line systemic anti-tumor therapy option showed no statistical differences in the present study. Overall, patients with non-functional metastatic G2 pNET receiving palliative or radical surgery demonstrated significantly better survival. Prospective clinical trials are suggested to validate our findings.
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Affiliation(s)
- Tingting You
- Department of Medical Oncology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | - Hui Tang
- Department of Medical Oncology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | - Xiuxiu Xu
- Department of Medical Oncology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | - Hongyan Ying
- Department of Medical Oncology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | - Zhao Sun
- Department of Medical Oncology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | - Yuejuan Cheng
- Department of Medical Oncology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | - Chunmei Bai
- Department of Medical Oncology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
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15
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Saied AA, Shroyer MN, Taylor JM, Midkiff CC. Functional Insulinomas in a Rhesus Macaque (Macaca mulatta). J Comp Pathol 2022; 198:1-5. [DOI: 10.1016/j.jcpa.2022.07.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 05/16/2022] [Accepted: 07/16/2022] [Indexed: 10/14/2022]
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16
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New frontiers in imaging including radiomics updates for pancreatic neuroendocrine neoplasms. Abdom Radiol (NY) 2022; 47:3078-3100. [PMID: 33095312 DOI: 10.1007/s00261-020-02833-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 10/07/2020] [Accepted: 10/12/2020] [Indexed: 01/18/2023]
Abstract
OBJECTIVE To illustrate the applications of various imaging tools including conventional MDCT, MRI including DWI, CT & MRI radiomics, FDG & DOTATATE PET-CT for diagnosis, staging, grading, prognostication, treatment planning and assessing treatment response in cases of pancreatic neuroendocrine neoplasms (PNENs). BACKGROUND Gastroenteropancreatic neuroendocrine neoplasms (GEP NENs) are very diverse clinically & biologically. Their treatment and prognosis depend on staging and primary site, as well as histological grading, the importance of which is also reflected in the recently updated WHO classification of GEP NENs. Grade 3 poorly differentiated neuroendocrine carcinomas (NECs) are aggressive & nearly always advanced at diagnosis with poor prognosis; whereas Grades-1 and 2 well-differentiated neuroendocrine tumors (NETs) can be quite indolent. Grade 3 well-differentiated NETs represent a new category of neoplasm with an intermediate prognosis. Importantly, the evidence suggest grade heterogeneity can occur within a given tumor and even grade progression can occur over time. Emerging evidence suggests that several non-invasive qualitative and quantitative imaging features on CT, dual-energy CT (DECT), MRI, PET and somatostatin receptor imaging with new tracers, as well as texture analysis, may be useful to grade, prognosticate, and accurately stage primary NENs. Imaging features may also help to inform choice of treatment and follow these neoplasms post-treatment. CONCLUSION GEP NENs treatment and prognosis depend on the stage as well as histological grade of the tumor. Traditional ways of imaging evaluation for diagnosis and staging does not yet yield sufficient information to replace operative and histological evaluation. Recognition of important qualitative imaging features together with quantitative features and advanced imaging tools including functional imaging with DWI MRI, DOTATATE PET/CT, texture analysis with radiomics and radiogenomic features appear promising for more accurate staging, tumor risk stratification, guiding management and assessing treatment response.
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17
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Hackeng WM, Assi HA, Westerbeke FHM, Brosens LAA, Heaphy CM. Prognostic and Predictive Biomarkers for Pancreatic Neuroendocrine Tumors. Surg Pathol Clin 2022; 15:541-554. [PMID: 36049835 DOI: 10.1016/j.path.2022.05.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Pancreatic neuroendocrine tumors (PanNETs) represent a clinically challenging disease because these tumors vary in clinical presentation, natural history, and prognosis. Novel prognostic biomarkers are needed to improve patient stratification and treatment options. Several putative prognostic and/or predictive biomarkers (eg, alternative lengthening of telomeres, alpha-thalassemia/mental retardation, X-linked (ATRX)/Death Domain Associated Protein (DAXX) loss) have been independently validated. Additionally, recent transcriptomic and epigenetic studies focusing on endocrine differentiation have identified PanNET subtypes that display similarities to either α-cells or β-cells and differ in clinical outcomes. Thus, future prospective studies that incorporate genomic and epigenetic biomarkers are warranted and have translational potential for individualized therapeutic and surveillance strategies.
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Affiliation(s)
- Wenzel M Hackeng
- Department of Pathology, University Medical Center Utrecht, Utrecht University, Heidelberglaan 100, 3584 CX Utrecht, the Netherlands
| | - Hussein A Assi
- Department of Medicine, Boston University School of Medicine, 820 Harrison Avenue, FGH 2011, Boston, MA 02118, USA
| | - Florine H M Westerbeke
- Department of Pathology, University Medical Center Utrecht, Utrecht University, Heidelberglaan 100, 3584 CX Utrecht, the Netherlands
| | - Lodewijk A A Brosens
- Department of Pathology, University Medical Center Utrecht, Utrecht University, Heidelberglaan 100, 3584 CX Utrecht, the Netherlands
| | - Christopher M Heaphy
- Department of Medicine, Boston University School of Medicine, 650 Albany Street, Room 444, Boston, MA 02118, USA; Department of Pathology & Laboratory Medicine, Boston University School of Medicine, 650 Albany Street, Room 444, Boston, MA 02118, USA.
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18
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Lin ZQ, Li X, Yang Y, Wang Y, Zhang XY, Zhang XX, Guo J. Nonfunctional pancreatic neuroendocrine tumours misdiagnosed as autoimmune pancreatitis: A case report and review of literature. World J Clin Cases 2022; 10:4886-4894. [PMID: 35801029 PMCID: PMC9198893 DOI: 10.12998/wjcc.v10.i15.4886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Revised: 10/29/2021] [Accepted: 04/04/2022] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Nonfunctional pancreatic neuroendocrine tumours are difficult to diagnose in the early stage of disease due to a lack of clinical symptoms, but they can rarely manifest as autoimmune pancreatitis. Autoimmune pancreatitis is an uncommon disease that may cause recurrent acute pancreatitis and is therefore often regarded as a special type of chronic pancreatitis.
CASE SUMMARY We report a case of a 42-year-old female who had nonspecific upper abdominal pain for 4 years and radiological abnormalities of the pancreas that mimicked autoimmune pancreatitis. The symptoms and pancreatic imaging did not improve following 1 year of steroid therapy. Finally, pancreatic biopsy was performed through endoscopic ultrasonography-guided fine-needle aspiration biopsy, and nonfunctional pancreatic neuroendocrine tumours were ultimately diagnosed. Pancreatectomy has resolved her symptoms.
CONCLUSION Therefore, the differentiation of nonfunctional pancreatic neuroendocrine tumours from autoimmune pancreatitis is very important, although it is rare. We propose that endoscopic ultrasonography-guided fine-needle aspiration biopsy should be performed if imaging characteristics are equivocal or the diagnosis is in question.
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Affiliation(s)
- Zi-Qi Lin
- Department of Integrated Traditional Chinese and Western Medicine, Sichuan Provincial Pancreatitis Centre and West China-Liverpool Biomedical Research Centre, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Province, China
| | - Xin Li
- Department of Integrated Traditional Chinese and Western Medicine, Sichuan Provincial Pancreatitis Centre and West China-Liverpool Biomedical Research Centre, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Province, China
| | - Yan Yang
- Laboratory Medicine, West China School of Medicine, Sichuan University, Chengdu 610041, Sichuan Province, China
| | - Yi Wang
- Department of Radiology, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Province, China
| | - Xiao-Ying Zhang
- Department of Integrated Traditional Chinese and Western Medicine, Sichuan Provincial Pancreatitis Centre and West China-Liverpool Biomedical Research Centre, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Province, China
| | - Xiao-Xin Zhang
- Department of Integrated Traditional Chinese and Western Medicine, Sichuan Provincial Pancreatitis Centre and West China-Liverpool Biomedical Research Centre, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Province, China
| | - Jia Guo
- Department of Integrated Traditional Chinese and Western Medicine, Sichuan Provincial Pancreatitis Centre and West China-Liverpool Biomedical Research Centre, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Province, China
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Li AY, Visser BC, Dua MM. Surgical Indications and Outcomes of Resection for Pancreatic Neuroendocrine Tumors with Vascular Involvement. Cancers (Basel) 2022; 14:cancers14092312. [PMID: 35565442 PMCID: PMC9103421 DOI: 10.3390/cancers14092312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Revised: 05/03/2022] [Accepted: 05/04/2022] [Indexed: 11/22/2022] Open
Abstract
Simple Summary Pancreatic neuroendocrine tumors (pNETs) are a heterogenous group of rare epithelial neoplasms. For most patients, surgery remains the only treatment modality to cure pNETs, and is recommended for patients with surgically resectable disease. Many of these tumors are non-functional tumors and do not produce clinical symptoms, so patients may present with locally advanced tumors, which invade surrounding organs or neighboring blood vessels. The presence of vascular involvement had previously been considered a contraindication to surgery, but, in recent years, at centers with considerable experience, aggressive surgery to remove pNETs with vascular reconstruction has been performed safely and with good long-term survival. In this review, we will discuss the considerations for resectability, review novel surgical approaches, and present the available evidence on the immediate and long-term postoperative outcomes. Abstract Complete surgical resection of pancreatic neuroendocrine tumors (pNETs) has been suggested as the only potentially curative treatment. A proportion of these tumors will present late during disease progression, and invade or encase surrounding vasculature; therefore, surgical treatment of locally advanced disease remains controversial. The role of surgery with vascular reconstruction in pNETs is not well defined, and there is considerable variability in the use of aggressive surgery for these tumors. Accurate preoperative assessment is critical to evaluate individual considerations, such as anatomical variants, areas and lengths of vessel involvement, proximal and distal targets, and collateralization secondary to the degree of occlusion. Surgical approaches to address pNETs with venous involvement may include thrombectomy, traditional vein reconstruction, a reconstruction-first approach, or mesocaval shunting. Although the amount of literature on pNETs with vascular reconstruction is limited to case reports and small institutional series, the last two decades of studies have demonstrated that aggressive resection of these tumors can be performed safely and with acceptable long-term survival.
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20
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Kaliszewski K, Ludwig M, Greniuk M, Mikuła A, Zagórski K, Rudnicki J. Advances in the Diagnosis and Therapeutic Management of Gastroenteropancreatic Neuroendocrine Neoplasms (GEP-NENs). Cancers (Basel) 2022; 14:2028. [PMID: 35454934 PMCID: PMC9030061 DOI: 10.3390/cancers14082028] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 04/10/2022] [Accepted: 04/14/2022] [Indexed: 02/07/2023] Open
Abstract
Neuroendocrine neoplasms (NENs) are an increasingly common cause of neoplastic diseases. One of the largest groups of NENs are neoplasms localized to the gastroenteropancreatic system, which are known as gastroenteropancreatic NENs (GEP-NENs). Because of nonspecific clinical symptoms, GEP-NEN patient diagnosis and, consequently, their treatment, might be difficult and delayed. This situation has forced researchers all over the world to continue progress in the diagnosis and treatment of patients with GEP-NENs. Our review is designed to present the latest reports on the laboratory diagnostic techniques, imaging tests and surgical and nonsurgical treatment strategies used for patients with these rare neoplasms. We paid particular attention to the nuclear approach, the use of which has been applied to GEP-NEN patient diagnosis, and to nonsurgical and radionuclide treatment strategies. Recent publications were reviewed in search of reports on new strategies for effective disease management. Attention was also paid to those studies still in progress, but with successful results. A total of 248 papers were analyzed, from which 141 papers most relevant to the aim of the study were selected. Using these papers, we highlight the progress in the development of diagnostic and treatment strategies for patients with GEP-NENs.
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Affiliation(s)
- Krzysztof Kaliszewski
- Department of General, Minimally Invasive and Endocrine Surgery, Wroclaw Medical University, Borowska Street 213, 50-556 Wroclaw, Poland; (M.L.); (M.G.); (A.M.); (K.Z.); (J.R.)
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21
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He L, Boulant S, Stanifer M, Guo C, Nießen A, Chen M, Felix K, Bergmann F, Strobel O, Schimmack S. The link between menin and pleiotrophin in the tumor biology of pancreatic neuroendocrine neoplasms. Cancer Sci 2022; 113:1575-1586. [PMID: 35179814 PMCID: PMC9128182 DOI: 10.1111/cas.15301] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 01/26/2022] [Accepted: 01/30/2022] [Indexed: 11/29/2022] Open
Abstract
MEN1, which encodes menin protein, is the most frequently mutated gene in pancreatic neuroendocrine neoplasms (pNEN). Pleiotrophin (PTN) was reported being a downstream factor of menin and to promote metastasis in different tumor entities. In this study, the effect of menin and its link to PTN were assessed on features of pNEN cells and outcome of pNEN patients. The expression of menin and PTN in pNEN patient tissues were examined by qRT-PCR and western blot and compared to their metastasis status. Functional assays, including transwell migration/invasion and scratch wound healing assays, were performed on specifically designed CRISPR/Cas9-mediated MEN1-knockout (MEN1-KO) pNEN cell lines (BON1MEN1-KO and QGP1MEN1-KO ) to study the metastasis of pNEN. Among 30 menin negative pNEN patients, 21 revealed a strong protein expression of PTN. This combination was associated with metastasis and shorter disease-free survival. Accordingly, in BON1MEN1-KO and QGP1MEN1-KO cells, PTN protein expression was positively associated with enhanced cell migration and invasion, which could be reversed by PTN silencing. PTN is a predicting factor of metastatic behavior of menin-deficient-pNEN. In vitro, menin is able to both promote and suppress the metastasis of pNEN by regulating PTN expression depending on the tumoral origin of pNEN cells.
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Affiliation(s)
- Liping He
- Department of General, Visceral and Transplantation Surgery, Heidelberg University Hospital, Heidelberg, Germany.,Department of Medical Oncology, The First Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, 310003, P.R. China
| | - Steeve Boulant
- Center for Integrative Infectious Disease Research, Heidelberg University, Heidelberg, Germany
| | - Megan Stanifer
- Center for Integrative Infectious Disease Research, Heidelberg University, Heidelberg, Germany
| | - Cuncai Guo
- Center for Integrative Infectious Disease Research, Heidelberg University, Heidelberg, Germany
| | - Anna Nießen
- Department of General, Visceral and Transplantation Surgery, Heidelberg University Hospital, Heidelberg, Germany
| | - Mingyi Chen
- Department of General, Visceral and Transplantation Surgery, Heidelberg University Hospital, Heidelberg, Germany.,Department of Breast Surgery, The First Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, 310003, P.R. China
| | - Klaus Felix
- Department of General, Visceral and Transplantation Surgery, Heidelberg University Hospital, Heidelberg, Germany
| | - Frank Bergmann
- Institute of Pathology, Heidelberg University, Heidelberg, Germany
| | - Oliver Strobel
- Department of General, Visceral and Transplantation Surgery, Heidelberg University Hospital, Heidelberg, Germany
| | - Simon Schimmack
- Department of General, Visceral and Transplantation Surgery, Heidelberg University Hospital, Heidelberg, Germany
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22
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Bilski M, Mertowska P, Mertowski S, Sawicki M, Hymos A, Niedźwiedzka-Rystwej P, Grywalska E. The Role of Conventionally Fractionated Radiotherapy and Stereotactic Radiotherapy in the Treatment of Carcinoid Tumors and Large-Cell Neuroendocrine Cancer of the Lung. Cancers (Basel) 2021; 14:177. [PMID: 35008341 PMCID: PMC8750397 DOI: 10.3390/cancers14010177] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Revised: 12/23/2021] [Accepted: 12/28/2021] [Indexed: 12/15/2022] Open
Abstract
The occurrence of neuroendocrine tumors among the diagnosed neoplasms is extremely rare and is associated with difficulties in undertaking effective therapy due to the histopathological differentiation of individual subtypes and the scarce clinical data and recommendations found in the literature. The choice of treatment largely depends not only on its type, but also on the location and production of excess hormones by the tumor itself. Common therapeutic approaches include surgical removal of the tumor, the use of chemotherapy, targeted drug therapy, peptide receptor radionuclide therapy, and the use of radiation therapy. This article reviews the current knowledge on the classification and application of radiotherapy in the treatment of lung NETs. Case reports were presented in which treatment with conventional radiotherapy, radical and palliative radiochemotherapy, as well as stereotactic fractionated radiotherapy in the treatment of typical (TC) and atypical (AT) lung carcinoids and large cell neuroendocrine carcinoma (LCNC) were used. We hope that the solutions presented in the literature will allow many radiation oncologists to make the best, often personalized decisions about the therapeutic qualifications of patients.
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Affiliation(s)
- Mateusz Bilski
- Department of Radiotherapy, Medical University of Lublin, Chodźki 7 St., 20-093 Lublin, Poland;
- Department of Brachytherapy, St. John’s Cancer Center, Jaczewskiego 7 St., 20-090 Lublin, Poland
- Department of Radiotherapy, St. John’s Cancer Center, Jaczewskiego 7 St., 20-090 Lublin, Poland
| | - Paulina Mertowska
- Department of Experimental Immunology, Medical University of Lublin, Chodźki 4a St., 20-093 Lublin, Poland; (P.M.); (S.M.); (A.H.); (E.G.)
| | - Sebastian Mertowski
- Department of Experimental Immunology, Medical University of Lublin, Chodźki 4a St., 20-093 Lublin, Poland; (P.M.); (S.M.); (A.H.); (E.G.)
| | - Marcin Sawicki
- Institute of Medical Sciences, Medical College of Rzeszow University, mjr. W. Kopisto 2a St., 35-959 Rzeszow, Poland;
| | - Anna Hymos
- Department of Experimental Immunology, Medical University of Lublin, Chodźki 4a St., 20-093 Lublin, Poland; (P.M.); (S.M.); (A.H.); (E.G.)
| | | | - Ewelina Grywalska
- Department of Experimental Immunology, Medical University of Lublin, Chodźki 4a St., 20-093 Lublin, Poland; (P.M.); (S.M.); (A.H.); (E.G.)
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23
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Hwang HK, Song KB, Park M, Kwon W, Jang JY, Heo JS, Choi DW, Kang CM, Park JS, Hong TH, Cho CK, Ahn KS, Lee H, Lee SE, Jeong CY, Roh YH, Kim HJ, Hwang DW, Kim SC, Han HS, Yoon YS. Minimally Invasive Versus Open Pancreatectomy for Right-Sided and Left-Sided G1/G2 Nonfunctioning Pancreatic Neuroendocrine Tumors: A Multicenter Matched Analysis with an Inverse Probability of Treatment-Weighting Method. Ann Surg Oncol 2021; 28:7742-7758. [PMID: 33969463 DOI: 10.1245/s10434-021-10092-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Accepted: 04/12/2021] [Indexed: 02/05/2023]
Abstract
BACKGROUND Limited evidence exists for the safety and oncologic efficacy of minimally invasive surgery (MIS) for nonfunctioning pancreatic neuroendocrine tumors (NF-PNETs) according to tumor location. This study aimed to compare the surgical outcomes of MIS and open surgery (OS) for right- or left-sided NF-PNETs. METHODS The study collected data on patients who underwent surgical resection (pancreatoduodenectomy, distal/total/central pancreatectomy, duodenum-preserving pancreas head resection, or enucleation) of a localized NF-PNET between January 2000 and July 2017 at 14 institutions. The inverse probability of treatment-weighting method with propensity scores was used for analysis. RESULTS The study enrolled 859 patients: 478 OS and 381 MIS patients. A matched analysis by tumor location showed no differences in resection margin, intraoperative blood loss, or complications between MIS and OS. However, MIS was associated with a longer operation time for right-sided tumors (393.3 vs 316.7 min; P < 0.001) and a shorter postoperative hospital stay for left-sided tumors (8.9 vs 12.9 days; P < 0.01). The MIS group was associated with significantly higher survival rates than the OS group for right- and left-sided tumors, but survival did not differ for the patients divided by tumor grade and location. Multivariable analysis showed that MIS did not affect survival for any tumor location. CONCLUSION The short-term outcomes offered by MIS were comparable with those of OS except for a longer operation time for right-sided NF-PNETs. The oncologic outcomes were not compromised by MIS regardless of tumor location or grade. These findings suggest that MIS can be performed safely for selected patients with localized NF-PNETs.
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Affiliation(s)
- Ho Kyoung Hwang
- Department of Hepatobiliary and Pancreatic Surgery, Yonsei University College of Medicine, Seoul, Korea
| | - Ki Byung Song
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, Asan Medical Center, Ulsan University College of Medicine, Seoul, Korea
| | - Minsu Park
- Department of Statistics, Keimyung University, Daegu, Korea
| | - Wooil Kwon
- Department of Surgery and Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Jin-Young Jang
- Department of Surgery and Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Jin Seok Heo
- Division of Hepatobiliary-Pancreatic Surgery, Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Dong Wook Choi
- Division of Hepatobiliary-Pancreatic Surgery, Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Chang Moo Kang
- Department of Hepatobiliary and Pancreatic Surgery, Yonsei University College of Medicine, Seoul, Korea
| | - Joon Seong Park
- Department of Surgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Tae Ho Hong
- Department of Hepatobiliary and Pancreas Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Chol Kyoon Cho
- Department of Surgery, Chonnam National University Hwasun Hospital, Hwasun, Jeollanamdo, Korea
| | - Keun Soo Ahn
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, Keimyung University Dongsan Hospital, Daegu, Korea
| | - Huisong Lee
- Department of Surgery, Ewha Womans University College of Medicine, Seoul, Korea
| | - Seung Eun Lee
- Department of Surgery, Chung-Ang University Hospital, College of Medicine, Chung-Ang University, Seoul, Korea
| | - Chi-Young Jeong
- Department of Surgery, Gyeongsang National University School of Medicine, Jinju, Korea
| | - Young Hoon Roh
- Department of Surgery, Dong-A University College of Medicine, Busan, Korea
| | - Hee Joon Kim
- Department of Surgery, Chonnam National University Hospital, Gwangju, Korea
| | - Dae Wook Hwang
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, Asan Medical Center, Ulsan University College of Medicine, Seoul, Korea
| | - Song Cheol Kim
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, Asan Medical Center, Ulsan University College of Medicine, Seoul, Korea
| | - Ho-Seong Han
- Department of Surgery, Seoul National University Bundang Hospital, Seongnam-si, Gyeonggi-do, Korea
| | - Yoo-Seok Yoon
- Department of Surgery, Seoul National University Bundang Hospital, Seongnam-si, Gyeonggi-do, Korea.
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24
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Yang D, Wang D, Qiu Y, Tian X, Zuo D, Dong Y, Lou W, Wang W. Incidental nonfunctioning pancreatic neuroendocrine tumors: Contrast enhanced ultrasound features in diagnosis. Clin Hemorheol Microcirc 2021; 80:343-352. [PMID: 34602462 DOI: 10.3233/ch-211269] [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] [Indexed: 12/17/2022]
Abstract
AIM Preoperative suspicion of malignancy in nonfunctioning pancreatic neuroendocrine tumors (pNETs) is mostly based on tumor size. We retrospectively analyzed the contrast enhanced ultrasound (CEUS) features of a series of histopathologically proved nonfunctioning pNETs. METHODS In this retrospective study, 37 surgery and histologically proved nonfunctioning pNETs were included. All pNETs lesions were incidentally detected by transabdominal ultrasound. B mode ultrasound (BMUS) and CEUS features were reviewed and analyzed. 52 histopathologically proved pancreatic ductal adenocarcinoma (PDACs) lesions were included as a control group. RESULTS All nonfunctioning pNETs patients showed no typical clinical symptoms. No significant differences were observed in size, echogenicity or internal color flow imaging signal between pNETs and PDAC patients (P > 0.05). Most of nonfunctioning pNETs showed a well-defined tumor margin. The presence of pancreatic duct dilatation was less frequently observed in nonfunctioning pNETs patients (P < 0.05). After injection of ultrasound contrast agents, homogeneous enhancement was more commonly observed in nonfunctioning pNETs group (P < 0.05). During arterial phase of CEUS, most of nonfunctioning pNETs were hyper- or isoenhanced (32/37, 86.5%), whereas most of PDACs were hypoenhanced (34/52, 65.4%) (P < 0.05). Nonenhanced necrosis area was more commonly detected in PDACs (P = 0.012). CONCLUSIONS CEUS features are helpful for preoperative non-invasive differential diagnosis of nonfunctioning pNETs, assisting further clinical decision-making process.
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Affiliation(s)
- Daohui Yang
- Department of Ultrasound, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Dansong Wang
- Department of Pancreatic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yijie Qiu
- Department of Ultrasound, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Xiaofan Tian
- Department of Ultrasound, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Dan Zuo
- Department of Ultrasound, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yi Dong
- Department of Ultrasound, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Wenhui Lou
- Department of Pancreatic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Wenping Wang
- Department of Ultrasound, Zhongshan Hospital, Fudan University, Shanghai, China
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25
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Yuan B, Shi Y, Li Y, Tan H, Jiao P, Su W, Liu M, Qi Z, Tan H, Luo J. Ki-67 index of 5% could better predict the clinical prognosis of well-differentiated pancreatic neuroendocrine tumours. Jpn J Clin Oncol 2021; 51:1708-1714. [PMID: 34580725 DOI: 10.1093/jjco/hyab144] [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: 05/12/2021] [Accepted: 08/27/2021] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND The pathological classification of well-differentiated pancreatic neuroendocrine tumour (pNET) is based largely upon Ki-67 index. However, current controversies abound about the classification of pNETG1/pNETG2. PATIENTS AND METHODS Clinicopathological data were retrospectively analysed for 153 pNETG1/pNETG2 patients hospitalized at China-Japan Friendship Hospital. The critical values of pNETG1/pNETG2 were examined by using the area under the receiver operating characteristic curve and survival analysis was used to compare the clinical prognosis of pNETG1/G2. RESULTS Among them, 52.3% were males. The median age was 49 (18-81) years and the clinical types were pNETG1 (n = 38) and pNETG2 (n = 115). According to the receiver operating characteristic curve, the optimal cut-off value was 5.5% for classifying pNETG1/pNETG2. Significant differences between pNETG1 (n = 101) and pNETG2 (n = 52) existed in overall survival (P = 0.001) and disease-free survival (P = 0.013) when Ki-67 index was 5%. Yet no significant differences existed in overall survival (P = 0.378) or disease-free survival (P = 0.091) between pNETG1 and pNETG2 when Ki-67 index was 3%. Furthermore, multivariate analysis indicated that the revised pathological grade was an independent risk factor for mortality and post-operative recurrence of pNET patients (P = 0.003 and 0.014; hazard ratio (HR) = 4.005 and 2.553). CONCLUSION Thus, differentiating pNETG1/pNETG2 with Ki-67 index (5%) is proposed as the cut-off value and a new Ki-67 index (5%) is a better predictor of pNET mortality and post-operative recurrence than Ki-67 index (3%).
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Affiliation(s)
- Bing Yuan
- Graduate School, Beijing University of Chinese Medicine, Beijing, China.,Department of Integrative Oncology, China-Japan Friendship Hospital, Beijing, China
| | - Yanfen Shi
- Department of Pathology, China-Japan Friendship Hospital, Beijing, China
| | - Yuanliang Li
- Graduate School, Beijing University of Chinese Medicine, Beijing, China.,Department of Integrative Oncology, China-Japan Friendship Hospital, Beijing, China
| | - Haidong Tan
- Department of Hepato-Pancreato-Biliary Surgery, China-Japan Friendship Hospital, Beijing, China
| | - Peipei Jiao
- Graduate School, Beijing University of Chinese Medicine, Beijing, China.,Department of Integrative Oncology, China-Japan Friendship Hospital, Beijing, China
| | - Wenting Su
- Graduate School, Beijing University of Chinese Medicine, Beijing, China.,Department of Integrative Oncology, China-Japan Friendship Hospital, Beijing, China
| | - Meng Liu
- Department of Integrative Oncology, China-Japan Friendship Hospital, Beijing, China
| | - Zhirong Qi
- Department of Integrative Oncology, China-Japan Friendship Hospital, Beijing, China
| | - Huangying Tan
- Department of Integrative Oncology, China-Japan Friendship Hospital, Beijing, China
| | - Jie Luo
- Department of Pathology, China-Japan Friendship Hospital, Beijing, China
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26
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Underwood PW, Riner AN, Neal D, Cameron ME, Yakovenko A, Reddy S, Rose JB, Hughes SJ, Trevino JG. It's more than just cancer biology: Health disparities in patients with pancreatic neuroendocrine tumors. J Surg Oncol 2021; 124:1390-1401. [PMID: 34499741 DOI: 10.1002/jso.26667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 06/05/2021] [Accepted: 08/29/2021] [Indexed: 11/09/2022]
Abstract
BACKGROUND AND OBJECTIVES Pancreatic neuroendocrine tumors (PNETs) represent a rare form of pancreatic cancer. Racial/ethnic disparities have been documented in pancreatic ductal adenocarcinoma, but health disparities have not been well described in patients with PNETs. METHODS A retrospective review of patients with PNETs in the National Cancer Database was performed for 2004-2014. Approximately 16 605 patients with PNETs and available vital status were identified. Survival was compared by race/ethnicity and socioeconomic status using Kaplan-Meier methods and Cox regression. RESULTS There were no significant differences in survival between Non-Hispanic, White; Hispanic, White; or Non-Hispanic, Black patients on univariate analysis. Kaplan-Meier analysis showed that patients from communities with lower median household income and education level had worse survival (p < 0.001). Patients age less than 65 without insurance, similarly, had worse survival (p < 0.001). Multivariable modeling found no association between race/ethnicity and risk of mortality (p = 0.37). Lower median household income and lower education level were associated with increased mortality (p < 0.001). CONCLUSIONS Unlike most other malignancies, race/ethnicity is not associated with survival differences in patients with PNETs. Patients with lower socioeconomic status had worse survival. The presence of identifiable health disparities in patients with PNETs represents a target for intervention and opportunity to improve survival in patients with this malignancy.
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Affiliation(s)
- Patrick W Underwood
- Department of Surgery, University of Florida College of Medicine, Gainesville, Florida, USA
| | - Andrea N Riner
- Department of Surgery, University of Florida College of Medicine, Gainesville, Florida, USA
| | - Dan Neal
- Department of Surgery, University of Florida College of Medicine, Gainesville, Florida, USA
| | - Miles E Cameron
- Department of Surgery, University of Florida College of Medicine, Gainesville, Florida, USA
| | - Anastasiya Yakovenko
- Department of Surgery, University of Alabama at Birmingham School of Medicine, Birmingham, Alabama, USA
| | - Sushanth Reddy
- Department of Surgery, University of Alabama at Birmingham School of Medicine, Birmingham, Alabama, USA
| | - John Bart Rose
- Department of Surgery, University of Alabama at Birmingham School of Medicine, Birmingham, Alabama, USA
| | - Steven J Hughes
- Department of Surgery, University of Florida College of Medicine, Gainesville, Florida, USA
| | - Jose G Trevino
- Department of Surgery, University of Florida College of Medicine, Gainesville, Florida, USA.,Department of Surgery, Virginia Commonwealth University, Richmond, Virginia, USA
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27
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Thompson R, Landry CS. Multiple endocrine neoplasia 1: a broad overview. Ther Adv Chronic Dis 2021; 12:20406223211035288. [PMID: 34413971 PMCID: PMC8369854 DOI: 10.1177/20406223211035288] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Accepted: 07/07/2021] [Indexed: 01/10/2023] Open
Abstract
This review article discusses the diagnoses and treatment of patients with multiple endocrine neoplasia type 1 (MEN 1). The most common tumors associated with MEN 1 are located in the pancreas, pituitary, and parathyroid glands. Less common tumors include neuroendocrine tumors of the lung and thymus, adrenal tumors, and cutaneous lesions. This article describes the diagnosis, clinical manifestations, treatment, and surveillance of tumors associated with patients who are diagnosed with MEN 1.
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Affiliation(s)
- Rachel Thompson
- Department of Surgery, Baylor University Medical Center, Dallas, TX, USA
| | - Christine S. Landry
- Department of Surgery, Baylor University Medical Center, Dallas, TX 77030-3411, USA
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28
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Ge L, Li H, Dong L, Shang G, Wang W, Li Y, Qi L, Zhao J, Peng D, Tong G. Nomogram for predicting survival of patients with metastatic nonfunctioning pancreatic neuroendocrine tumors: A SEER based study. Medicine (Baltimore) 2021; 100:e26347. [PMID: 34232169 PMCID: PMC8270631 DOI: 10.1097/md.0000000000026347] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 06/01/2021] [Indexed: 01/04/2023] Open
Abstract
More attention has been placed on nonfunctioning pancreatic neuroendocrine tumors due to the increase in its incidence in recent years. Whether tumor resection at the primary site of metastatic NFpNET is effective remains controversial. Moreover, clinicians need a more precise prognostic tool to estimate the survival of these patients.Patients with metastatic NFpNET were extracted from the Surveillance, Epidemiology, and End Results (SEER) database. Significant prognostic factors were identified using a multivariate Cox regression model and included in the nomogram. Coarsened exact matching analysis was used to balance the clinical variables between the non-surgical and surgical groups in our study.A total of 1464 patients with metastatic nonfunctioning pancreatic neuroendocrine tumors (NFpNETs) were included in our cohort. Multivariate analysis identified age, sex, tumor size, differentiated grade, lymph node metastases, resection of primary tumors, and marital status as independent predictors of metastatic NFpNET. The nomogram showed excellent accuracy in predicting 1-, 3-, and 5-year overall survival, with a C-index of 0.812. The calibration curve revealed good consistency between the predicted and actual survival.Coarsened exact matching analysis using SEER data indicated the survival advantages of resection of primary tumors. Our study is the first to build a nomogram model for patients with metastatic NFpNETs. This predictive tool can help clinicians identify high-risk patients and more accurately assess patient survival times.
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29
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Jawlakh H, Velikyan I, Welin S, Sundin A. 68 Ga-DOTATOC-PET/MRI and 11 C-5-HTP-PET/MRI are superior to 68 Ga-DOTATOC-PET/CT for neuroendocrine tumour imaging. J Neuroendocrinol 2021; 33:e12981. [PMID: 34046974 DOI: 10.1111/jne.12981] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 04/07/2021] [Accepted: 04/26/2021] [Indexed: 12/13/2022]
Abstract
The present study aimed to assess gadoxetate disodium contrast-enhanced (CE) positron emission tomography (PET)/magnetic resonance imaging (MRI) with 68 Ga-DOTATOC and 11 C-5-Hydroxy-tryptophan (11 C-5-HTP) in comparison with iodine CE 68 Ga-DOTATOC-PET/computed tomography (CT) for neuroendocrine tumour imaging. Detection rate and reader's confidence were evaluated for each separate image volume: CE-CT, CE-MRI including diffusion-weighted imaging, 68 Ga-DOTATOC-PET performed at PET/CT, 68 Ga-DOTATOC-PET performed at PET/MRI and 11 C-5-HTP-PET, and for the three combined hybrid examinations 68 Ga-DOTATOC-PET/MRI, 11 C-5-HTP-PET/MRI and 68 Ga-DOTATOC-PET/CT. In 11 patients, 255 lesions were depicted. 68 Ga-DOTATOC-PET performed at PET/MRI depicted 72.5%, 68 Ga-DOTATOC-PET performed at PET/CT depicted 62.7%, 11 C-5-HTP-PET depicted 68.2% and CE-CT depicted 53% of lesions. 68 Ga-DOTATOC-PET performed at PET/MRI (P < 0.001) and PET/CT (P = 0.02), 11 C-5-HTP-PET (P < 0.001) and MRI (P < 0.001) were superior to CT. 68 Ga-DOTATOC-PET/MRI and 11 C-5-HTP-PET/MRI detected 92.5% and 92% of lesions, respectively, and both outperformed 68 Ga-DOTATOC-PET/CT (65%) (P < 0.001). For liver metastasis imaging, MRI alone was unsurpassed (P < 0.01) and 68 Ga-DOTATOC-PET/MRI and 11 C-5-HTP-PET/MRI outperformed 68 Ga-DOTATOC-PET/CT (P < 0.001). For lymph node metastasis diagnosis, 68 Ga-DOTATOC-PET performed at PET/MRI and PET/CT and 11 C-5-HTP-PET detected 94%, 94% and 94% of lesions, respectively, and outperformed MRI and CE-CT alone (P < 0.001). For bone metastasis imaging, 68 Ga-DOTATOC-PET performed at PET/MRI and PET/CT and 11 C-5-HTP-PET performed equally well (P = 0.05) and better than MRI. Reader's confidence was better for 68 Ga-DOTATOC-PET/MRI and 11 C-5-HTP-PET/MRI than for 68 Ga-DOTATOC-PET/CT. The tumour maximum standardised uptake value and tumour-to-liver ratio were both approximately twice as high as for 68 Ga-DOTATOC than for 11 C-5-HTP. 68 Ga-DOTATOC-PET/MRI and 11 C-5-HTP-PET/MRI provided the highest detection rates and reader's confidence and were both superior to 68 Ga-DOTATOC-PET/CT, mainly because of the MRI component. The imaging contrast with 68 Ga-DOTATOC was superior to that of 11 C-5-HTP.
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Affiliation(s)
- Hiba Jawlakh
- Department of Surgical Sciences, Radiology and Molecular Imaging, Uppsala University, Uppsala, Sweden
| | - Irina Velikyan
- Department of Surgical Sciences, Radiology and Molecular Imaging, Uppsala University, Uppsala, Sweden
| | - Staffan Welin
- Department of Medical Sciences, Uppsala University, Uppsala, Sweden
| | - Anders Sundin
- Department of Surgical Sciences, Radiology and Molecular Imaging, Uppsala University, Uppsala, Sweden
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Kumar S, Raobiakady R, Watkins D, Terlizzo M, Bhogal RH. Radical resection of large metastatic non-functioning pancreatic neuroendocrine carcinoma complicated by splenic vein thrombosis and sinistral portal hypertension. Int J Surg Case Rep 2021; 81:105724. [PMID: 33820735 PMCID: PMC8073194 DOI: 10.1016/j.ijscr.2021.105724] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 03/02/2021] [Accepted: 03/03/2021] [Indexed: 02/07/2023] Open
Abstract
INTRODUCTION AND IMPORTANCE There are limited reports in the literature of radical surgical resection for pancreatic neuroendocrine carcinoma (PNEC). In patients with non-functioning PNEC (NF-PNEC) within the tail of the pancreas tumours can cause splenic vein thrombosis (SVT) and subsequent sinitral portal hypertension (SPH). Radical surgical resection in such patients with concomitant liver metastasis has not previously been reported. CASE PRESENTATION We present a 67-year old female patient who presented with a large NF-PNEC within the tail of the pancreas with liver metastasis. We performed a distal pancreatectomy, splenectomy, partial gastrectomy and liver resection to achieve radical resecton. DISCUSSION All patients with NF-PNEC within the tail of the pancreatic should be considered for radical surgical resection. In the presence of multi-visceral involvement and complications such as SVT and/or SPH multi-speciality surgical expertise is likely to be required. CONCLUSION Radical multi-visceral resection for large NF-PNEC can be safely performed in the presence of SVT and SPH.
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Affiliation(s)
- S Kumar
- The Royal Marsden Hospital (NHS Foundation Trust), Department of Surgery, Fulham Road, Chelsea, London, SW3 6JJ, United Kingdom; Division of Radiotherapy & Imaging, The Institute for Cancer Research, 123 Old Brompton Road, London, United Kingdom; Imperial College London, Department of Surgery & Cancer, Exhibition Road, South Kensington, London, SW7 2BU, United Kingdom
| | - R Raobiakady
- The Royal Marsden Hospital (NHS Foundation Trust), Department of Anaesthetics, Fulham Road, Chelsea, London, SW3 6JJ, United Kingdom
| | - D Watkins
- The Royal Marsden Hospital (NHS Foundation Trust), Department of Oncology, Fulham Road, Chelsea, London, SW3 6JJ, United Kingdom
| | - M Terlizzo
- The Royal Marsden Hospital (NHS Foundation Trust), Department of Histopathology, Fulham Road, Chelsea, London, SW3 6JJ, United Kingdom
| | - R H Bhogal
- The Royal Marsden Hospital (NHS Foundation Trust), Department of Surgery, Fulham Road, Chelsea, London, SW3 6JJ, United Kingdom; Division of Radiotherapy & Imaging, The Institute for Cancer Research, 123 Old Brompton Road, London, United Kingdom.
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32
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Titan AL, Norton JA, Fisher AT, Foster DS, Harris EJ, Worhunsky DJ, Worth PJ, Dua MM, Visser BC, Poultsides GA, Longaker MT, Jensen RT. Evaluation of Outcomes Following Surgery for Locally Advanced Pancreatic Neuroendocrine Tumors. JAMA Netw Open 2020; 3:e2024318. [PMID: 33146734 PMCID: PMC7643030 DOI: 10.1001/jamanetworkopen.2020.24318] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
IMPORTANCE Although outcome of surgical resection of liver metastases from pancreatic neuroendocrine tumors (PNETs) has been extensively studied, little is known about surgery for locally advanced PNETs; it was listed recently by the European neuroendocrine tumor society as a major unmet need. OBJECTIVE To evaluate the outcome of patients who underwent surgery for locally aggressive PNETs. DESIGN, SETTING, AND PARTICIPANTS This retrospective single-center case series reviewed consecutive patients who underwent resection of T3/T4 PNETs at a single academic institution. Data collection occurred from 2003 to 2018. Data analysis was performed in August 2019. MAIN OUTCOMES AND MEASURES Disease-free survival (primary outcome) and overall mortality (secondary outcome) were assessed with Kaplan-Meier analysis. Recurrence risk (secondary outcome, defined as identification of tumor recurrence on imaging) was assessed with Cox proportional hazard models adjusting for covariates. RESULTS In this case series, 99 patients with locally advanced nondistant metastatic PNET (56 men [57%]) with a mean (SEM) age of 57.0 (1.4) years and a mean (SEM) follow-up of 5.3 (0.1) years underwent surgically aggressive resections. Of those, 4 patients (4%) underwent preoperative neoadjuvant treatment (including peptide receptor radionuclide therapy and chemotherapy); 18 patients (18%) underwent pancreaticoduodenectomy, 68 patients (69%) had distal or subtotal pancreatic resection, 10 patients (10%) had total resection, and 3 patients (3%) had other pancreatic procedures. Additional organ resection was required in 86 patients (87%): spleen (71 patients [71%]), major blood vessel (17 patients [17%]), bowel (2 patients [2%]), stomach (4 patients [4%]), and kidney (2 patients [2%]). Five-year disease-free survival was 61% (61 patients) and 5-year overall survival was 91% (91 patients). Of those living, 75 patients (76%) had an Eastern Cooperative Oncology Group score of less than or equal to 1 at last followup. Lymph node involvement (HR, 7.66; 95% CI, 2.78-21.12; P < .001), additional organ resected (HR, 6.15; 95% CI, 1.61-23.55; P = .008), and male sex (HR, 3.77; 95% CI, 1.68-8.97; P = .003) were associated with increased risk of recurrence. Functional tumors had a lower risk of recurrence (HR, 0.23; CI, 0.06-0.89; P = .03). Required resection of blood vessels was not associated with a significant increase recurrence risk. CONCLUSIONS AND RELEVANCE In this case series, positive lymph node involvement and resection of organs with tumor involvement were associated with an increased recurrence risk. These subgroups may require adjuvant systemic treatment. These findings suggest that patients with locally advanced PNETs who undergo surgical resection have excellent disease-free and overall survival.
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Affiliation(s)
- Ashley L. Titan
- Department of Surgery, Stanford University Hospital, Stanford, California
| | - Jeffrey A. Norton
- Department of Surgery, Stanford University Hospital, Stanford, California
| | - Andrea T. Fisher
- Department of Surgery, Stanford University Hospital, Stanford, California
| | - Deshka S. Foster
- Department of Surgery, Stanford University Hospital, Stanford, California
| | - E. John Harris
- Department of Surgery, Stanford University Hospital, Stanford, California
| | | | - Patrick J. Worth
- Department of Surgery, Stanford University Hospital, Stanford, California
| | - Monica M. Dua
- Department of Surgery, Stanford University Hospital, Stanford, California
| | - Brendan C. Visser
- Department of Surgery, Stanford University Hospital, Stanford, California
| | | | | | - Robert T. Jensen
- Gastrointestinal Cell Biology Section, National Institutes of Health, Bethesda, Maryland
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33
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Zhang WH, Wang WQ, Han X, Gao HL, Xu SS, Li S, Li TJ, Xu HX, Li H, Ye LY, Lin X, Wu CT, Long J, Yu XJ, Liu L. Infiltrating pattern and prognostic value of tertiary lymphoid structures in resected non-functional pancreatic neuroendocrine tumors. J Immunother Cancer 2020; 8:jitc-2020-001188. [PMID: 33055204 PMCID: PMC7559054 DOI: 10.1136/jitc-2020-001188] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/21/2020] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Tertiary lymphoid structures (TLS) are associated with favorable survival and play a critical role in most solid tumors. However, investigations of TLS are lacking in patients with grade 1 or grade 2 (G1/G2) non-functional pancreatic neuroendocrine tumors (NF-PanNETs). This study aimed to investigate the presence, cellular composition, association with tumor-infiltrating immune cells, and prognostic value of TLS in G1/G2 NF-PanNETs. METHODS Tumor tissues from a 182-patient Fudan cohort and a 125-patient external validation set were assessed by H&E staining, immunohistochemistry, and/or multispectral fluorescent immunohistochemistry. RESULTS TLS were identified in more than one-third of patients with G1/G2 NF-PanNETs and were located peritumorally, either just outside the tumor tissue or in the stromal area. TLS were mainly composed of B-cell follicles with germinal centers and T-cell zones with dendritic cells. Kaplan-Meier analyses showed that the presence of TLS correlated with both longer recurrence-free survival (RFS, p<0.001) and overall survival (OS, p=0.001), but the number of TLS had no prognostic significance. Multivariate Cox-regression analyses demonstrated that the presence of TLS, WHO classification, and 8th edition American Joint Committee on Cancer (AJCC8th) tumor-node-metastasis (TNM) stage were independent prognostic factors for RFS (p=0.004, p=0.001, and p<0.001, respectively) and OS (p=0.009, p=0.008, and p=0.019, respectively). These results were confirmed using an external validation set. Finally, a nomogram incorporating the presence of TLS was constructed to predict the probability of 5-year RFS of resected G1/G2 NF-PanNETs, which improved on the current WHO classification and AJCC8th TNM stage. CONCLUSIONS The presence of TLS is an independent and favorable predictor of resected G1/G2 NF-PanNETs, which may play a role in cancer immunobiology.
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Affiliation(s)
- Wu-Hu Zhang
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Shanghai Pancreatic Cancer Institute, Shanghai, China.,Pancreatic Cancer Institute, Fudan University, Shanghai, China
| | - Wen-Quan Wang
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, China .,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Shanghai Pancreatic Cancer Institute, Shanghai, China.,Pancreatic Cancer Institute, Fudan University, Shanghai, China
| | - Xuan Han
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Shanghai Pancreatic Cancer Institute, Shanghai, China.,Pancreatic Cancer Institute, Fudan University, Shanghai, China
| | - He-Li Gao
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Shanghai Pancreatic Cancer Institute, Shanghai, China.,Pancreatic Cancer Institute, Fudan University, Shanghai, China
| | - Shuai-Shuai Xu
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Shanghai Pancreatic Cancer Institute, Shanghai, China.,Pancreatic Cancer Institute, Fudan University, Shanghai, China
| | - Shuo Li
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Shanghai Pancreatic Cancer Institute, Shanghai, China.,Pancreatic Cancer Institute, Fudan University, Shanghai, China
| | - Tian-Jiao Li
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Shanghai Pancreatic Cancer Institute, Shanghai, China.,Pancreatic Cancer Institute, Fudan University, Shanghai, China
| | - Hua-Xiang Xu
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Shanghai Pancreatic Cancer Institute, Shanghai, China.,Pancreatic Cancer Institute, Fudan University, Shanghai, China
| | - Hao Li
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Shanghai Pancreatic Cancer Institute, Shanghai, China.,Pancreatic Cancer Institute, Fudan University, Shanghai, China
| | - Long-Yun Ye
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Shanghai Pancreatic Cancer Institute, Shanghai, China.,Pancreatic Cancer Institute, Fudan University, Shanghai, China
| | - Xuan Lin
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Shanghai Pancreatic Cancer Institute, Shanghai, China.,Pancreatic Cancer Institute, Fudan University, Shanghai, China
| | - Chun-Tao Wu
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Shanghai Pancreatic Cancer Institute, Shanghai, China.,Pancreatic Cancer Institute, Fudan University, Shanghai, China
| | - Jiang Long
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Shanghai Pancreatic Cancer Institute, Shanghai, China.,Pancreatic Cancer Institute, Fudan University, Shanghai, China
| | - Xian-Jun Yu
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, China .,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Shanghai Pancreatic Cancer Institute, Shanghai, China.,Pancreatic Cancer Institute, Fudan University, Shanghai, China
| | - Liang Liu
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, China .,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Shanghai Pancreatic Cancer Institute, Shanghai, China.,Pancreatic Cancer Institute, Fudan University, Shanghai, China
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Cloyd JM, Poultsides GA. The Landmark Series: Pancreatic Neuroendocrine Tumors. Ann Surg Oncol 2020; 28:1039-1049. [PMID: 32948965 DOI: 10.1245/s10434-020-09133-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Accepted: 08/29/2020] [Indexed: 12/23/2022]
Abstract
Pancreatic neuroendocrine tumors (PNETs) comprise a heterogeneous group of neoplasms arising from pancreatic islet cells that remain relatively rare but are increasing in incidence worldwide. While significant advances have been made in recent years with regard to systemic therapies for patients with advanced disease, surgical resection remains the standard of care for most patients with localized tumors. Although formal pancreatectomy with regional lymphadenectomy is the standard approach for most PNETs, pancreas-preserving approaches without formal lymphadenectomy are acceptable for smaller tumors at low risk for lymph node metastases. Furthermore, observation of small, asymptomatic, low-grade PNETs is a safe, initial strategy and is generally recommended for tumors < 1 cm in size. In this Landmark Series review, we highlight the critical studies that have defined the surgical management of PNETs.
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Affiliation(s)
- Jordan M Cloyd
- Department of Surgery, The Ohio State University Wexner Medical Center, Columbus, OH, USA
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35
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Serra F, De Matteis G, Delfanti S, Feltri M, Vanoli A, Cavenaghi G, Gallotti A, Maestri M, Brugnatelli S. Pancreatic nodule positive for 68-Ga-DOTAPEPTIDE-PET: NET or ectopic spleen? The importance of a good differential diagnosis. Clin Transl Imaging 2020. [DOI: 10.1007/s40336-020-00383-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Abstract
Background
Accessory spleen is a congenital defect in which splenic tissue is present outside the spleen. In 20% of cases, accessory spleen is localized within the pancreatic tail, a condition known as IPAS. The identification of this benign anomaly, which affects about 2% of general population, is not easy because it is often mistaken for a pNET which is more common, at around 5%. A 68-Ga-DOTAPEPTIDE-PET normally identifies pNETs with high rate of sensitivity and specificity, but in some conditions, it produces false positives, including IPAS.
Materials and tools
A clinical case we recently encountered, prompted us to review the available medical literature on the topic. Typing “intrapancreatic accessory spleen” into PubMed database and limiting research to the last 10 years yielded 121 results from which we selected the most relevant articles for decision-making, with a brief explanation of the reasons for selecting those. Our analysis focused on the most critical and least descriptive articles, those which clearly indicated the importance of differential diagnosis by promoting the use of advanced investigations in case of pancreatic nodule suspected for IPAS. Ultimately, our objective was to update the available guidelines recommendations.
Discussion and conclusions
Despite concern in the medical literature, a differential IPAS diagnosis is still subordinate to other clinical, radiological, nuclear medicine, and cytological criteria. After reviewing the literature, we recommend that IPAS should always be considered as a possibility before diagnosis of pNET is made. IPAS should be suspected in the presence of the following findings: asymptomatic pancreatic nodule found incidentally, absence of laboratory findings of NETs, localization in the pancreatic tail, between 1 and 3 cm in size with well-defined margins, homogeneous enhancement, and similar attenuation to the spleen on CT and MRI. In these cases, the use of advanced investigations beyond 68-Ga-DOTAPEPTIDE-PET must be systematic. The recognition of IPAS is not only a diagnostic refinement, but it also avoids unnecessary surgery for the patient.
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36
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Mpilla GB, Philip PA, El-Rayes B, Azmi AS. Pancreatic neuroendocrine tumors: Therapeutic challenges and research limitations. World J Gastroenterol 2020; 26:4036-4054. [PMID: 32821069 PMCID: PMC7403797 DOI: 10.3748/wjg.v26.i28.4036] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 07/08/2020] [Accepted: 07/16/2020] [Indexed: 02/06/2023] Open
Abstract
Pancreatic neuroendocrine tumors (PNETs) are known to be the second most common epithelial malignancy of the pancreas. PNETs can be listed among the slowest growing as well as the fastest growing human cancers. The prevalence of PNETs is deceptively low; however, its incidence has significantly increased over the past decades. According to the American Cancer Society’s estimate, about 4032 (> 7% of all pancreatic malignancies) individuals will be diagnosed with PNETs in 2020. PNETs often cause severe morbidity due to excessive secretion of hormones (such as serotonin) and/or overall tumor mass. Patients can live for many years (except for those patients with poorly differentiated G3 neuroendocrine tumors); thus, the prevalence of the tumors that is the number of patients actually dealing with the disease at any given time is fairly high because the survival is much longer than pancreatic ductal adenocarcinoma. Due to significant heterogeneity, the management of PNETs is very complex and remains an unmet clinical challenge. In terms of research studies, modest improvements have been made over the past decades in the identification of potential oncogenic drivers in order to enhance the quality of life and increase survival for this growing population of patients. Unfortunately, the majority of systematic therapies approved for the management of advanced stage PNETs lack objective response or at most result in modest benefits in survival. In this review, we aim to discuss the broad challenges associated with the management and the study of PNETs.
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Affiliation(s)
- Gabriel Benyomo Mpilla
- Department of Oncology, Wayne State University School of Medicine, Detroit, MI 48201, United States
| | - Philip Agop Philip
- Department of Oncology, Wayne State University School of Medicine, Detroit, MI 48201, United States
| | - Bassel El-Rayes
- Department of Hematology Oncology, Emory Winship Institute, Atlanta, GA 30322, United States
| | - Asfar Sohail Azmi
- Department of Oncology, Wayne State University School of Medicine, Detroit, MI 48201, United States
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Tanaka M, Heckler M, Mihaljevic AL, Probst P, Klaiber U, Heger U, Schimmack S, Büchler MW, Hackert T. Systematic Review and Metaanalysis of Lymph Node Metastases of Resected Pancreatic Neuroendocrine Tumors. Ann Surg Oncol 2020; 28:1614-1624. [PMID: 32720049 DOI: 10.1245/s10434-020-08850-7] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 06/27/2020] [Indexed: 12/15/2022]
Abstract
BACKGROUND The optimal surgical strategy for pancreatic neuroendocrine tumors (PNETs) is unknown. However, current guidelines recommend a watch-and-wait strategy for small nonfunctional PNETs (NF-PNETs). The aim of this study is to investigate the risk stratification and prognostic significance of lymph node metastasis (LNM) of PNETs to guide decision-making for lymphadenectomy. PATIENTS AND METHODS The MEDLINE and Web of Science databases were systematically searched for studies reporting either risk factors of LNM in resected PNETs or survival of patients with LNM. The weighted average incidence of LNM was calculated according to tumor characteristics. Random-effects metaanalyses were performed, and pooled hazard ratios (HR) and their 95% confidence intervals (CI) were calculated to determine the impact of LNM on overall survival (OS). In subgroup analyses, NF-PNETs were assessed. RESULTS From a total of 5883 articles, 98 retrospective studies with 13,374 patients undergoing resection for PNET were included. In all PNETs, the weighted median rates of LNM were 11.5% for small (≤ 2 cm) PNETs and 15.8% for G1 PNETs. In NF-PNETs, the rates were 11.2% for small PNETs and 10.3% for G1 PNETs. LNM of all PNETs (HR 3.87, 95% CI 3.00-4.99, P < 0.001) and NF-PNETs (HR 4.98, 95% CI 2.81-8.83, P < 0.001) was associated with worse OS. CONCLUSIONS LNM is potentially prevalent even in small and well-differentiated PNETs and is associated with worse prognosis. A watch-and-wait strategy for small NF-PNETs should be reappraised, and oncologic resection with lymphadenectomy can be considered. Prospective and controlled studies are needed in the future.
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Affiliation(s)
- Masayuki Tanaka
- Department of General, Visceral and Transplantation Surgery, University of Heidelberg, Heidelberg, Germany.,Department of Surgery, Keio University, School of Medicine, Tokyo, Japan
| | - Max Heckler
- Department of General, Visceral and Transplantation Surgery, University of Heidelberg, Heidelberg, Germany
| | - André L Mihaljevic
- Department of General, Visceral and Transplantation Surgery, University of Heidelberg, Heidelberg, Germany
| | - Pascal Probst
- Department of General, Visceral and Transplantation Surgery, University of Heidelberg, Heidelberg, Germany
| | - Ulla Klaiber
- Department of General, Visceral and Transplantation Surgery, University of Heidelberg, Heidelberg, Germany
| | - Ulrike Heger
- Department of General, Visceral and Transplantation Surgery, University of Heidelberg, Heidelberg, Germany
| | - Simon Schimmack
- Department of General, Visceral and Transplantation Surgery, University of Heidelberg, Heidelberg, Germany
| | - Markus W Büchler
- Department of General, Visceral and Transplantation Surgery, University of Heidelberg, Heidelberg, Germany
| | - Thilo Hackert
- Department of General, Visceral and Transplantation Surgery, University of Heidelberg, Heidelberg, Germany.
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Zhang WH, Wang WQ, Gao HL, Xu SS, Li S, Li TJ, Han X, Xu HX, Li H, Jiang W, Ye LY, Lin X, Wu CT, Yu XJ, Liu L. Tumor-Infiltrating Neutrophils Predict Poor Survival of Non-Functional Pancreatic Neuroendocrine Tumor. J Clin Endocrinol Metab 2020; 105:5819731. [PMID: 32285127 DOI: 10.1210/clinem/dgaa196] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Accepted: 04/11/2020] [Indexed: 12/21/2022]
Abstract
OBJECTIVE This study retrospectively characterized the immune infiltrating profile in nonfunctional pancreatic neuroendocrine tumors (NF-PanNETs). METHODS Tumor tissues from the 109-patient Fudan cohort and a 73-patient external validation set were evaluated by immunohistochemistry for 9 immune cell types: tumor-infiltrating neutrophils (TINs), tumor-associated macrophages (TAMs), CD11c+ dendritic cells, anti-NCR1+ natural killer (NK) cells, CD4+ and CD8+ T cells, CD45RO+ memory T cells, FOXP3+ regulatory T cells (Tregs), and CD20+ B cells. RESULTS TINs were primarily distributed in the intratumoral area, dendritic cells and NK cells were scattered evenly in intratumoral and stromal areas, and Tregs were rarely detected. The remaining 5 cell types were primarily present in peritumoral stroma. Total TINs (P < .001) and TAMs (P = .002) increased as NF-PanNET grade rose. Kaplan-Meier analyses showed that high intratumoral TINs, total TAMs, and stromal CD4+ T-cell infiltration correlated with shorter recurrence-free survival (RFS, P = .010, P = .027, and P = .035, respectively) and overall survival (OS, P = .017, P = .029, and P = .045, respectively). Additionally, high intratumoral CD8+ T cell infiltration correlated with prolonged RFS (P = .039). Multivariate Cox regression demonstrated that intratumoral TINs, World Health Organization (WHO) classification, and eighth edition of the American Joint Committee on Cancer tumor-node-metastasis staging system (AJCC8th TNM) were independent factors for RFS (P = .043, P = .023, and P = .029, respectively), whereas intratumoral TINs and WHO classification were independent factors for OS (P = .010 and P = .007, respectively). Furthermore, the combination of TINs, WHO classification, and AJCC8th TNM remarkably improved prognostic accuracy for RFS. These results have been verified in the external validation set. CONCLUSION Intratumoral TINs are an independent and unfavorable predictor of postoperative NF-PanNETs. A combination of TINs, WHO classification, and AJCC8th TNM could improve prognostic accuracy for RFS.
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Affiliation(s)
- Wu-Hu Zhang
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
- Shanghai Pancreatic Cancer Institute, Shanghai, China
- Pancreatic Cancer Institute, Fudan University, Shanghai, China
| | - Wen-Quan Wang
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
- Shanghai Pancreatic Cancer Institute, Shanghai, China
- Pancreatic Cancer Institute, Fudan University, Shanghai, China
| | - He-Li Gao
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
- Shanghai Pancreatic Cancer Institute, Shanghai, China
- Pancreatic Cancer Institute, Fudan University, Shanghai, China
| | - Shuai-Shuai Xu
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
- Shanghai Pancreatic Cancer Institute, Shanghai, China
- Pancreatic Cancer Institute, Fudan University, Shanghai, China
| | - Shuo Li
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
- Shanghai Pancreatic Cancer Institute, Shanghai, China
- Pancreatic Cancer Institute, Fudan University, Shanghai, China
| | - Tian-Jiao Li
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
- Shanghai Pancreatic Cancer Institute, Shanghai, China
- Pancreatic Cancer Institute, Fudan University, Shanghai, China
| | - Xuan Han
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
- Shanghai Pancreatic Cancer Institute, Shanghai, China
- Pancreatic Cancer Institute, Fudan University, Shanghai, China
| | - Hua-Xiang Xu
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
- Shanghai Pancreatic Cancer Institute, Shanghai, China
- Pancreatic Cancer Institute, Fudan University, Shanghai, China
| | - Hao Li
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
- Shanghai Pancreatic Cancer Institute, Shanghai, China
- Pancreatic Cancer Institute, Fudan University, Shanghai, China
| | - Wang Jiang
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
- Shanghai Pancreatic Cancer Institute, Shanghai, China
- Pancreatic Cancer Institute, Fudan University, Shanghai, China
| | - Long-Yun Ye
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
- Shanghai Pancreatic Cancer Institute, Shanghai, China
- Pancreatic Cancer Institute, Fudan University, Shanghai, China
| | - Xuan Lin
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
- Shanghai Pancreatic Cancer Institute, Shanghai, China
- Pancreatic Cancer Institute, Fudan University, Shanghai, China
| | - Chun-Tao Wu
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
- Shanghai Pancreatic Cancer Institute, Shanghai, China
- Pancreatic Cancer Institute, Fudan University, Shanghai, China
| | - Xian-Jun Yu
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
- Shanghai Pancreatic Cancer Institute, Shanghai, China
- Pancreatic Cancer Institute, Fudan University, Shanghai, China
| | - Liang Liu
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
- Shanghai Pancreatic Cancer Institute, Shanghai, China
- Pancreatic Cancer Institute, Fudan University, Shanghai, China
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Longlong Z, Xinxiang L, Yaqiong G, Wei W. Predictive Value of the Texture Analysis of Enhanced Computed Tomographic Images for Preoperative Pancreatic Carcinoma Differentiation. Front Bioeng Biotechnol 2020; 8:719. [PMID: 32695772 PMCID: PMC7339088 DOI: 10.3389/fbioe.2020.00719] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Accepted: 06/08/2020] [Indexed: 12/18/2022] Open
Abstract
Purpose To assess the utility of texture analysis for predicting the pathological degree of differentiation of pancreatic carcinoma (PC). Methods Eighty-three patients with PC who went through postoperative pathology diagnose and CT examination were selected at Anhui Provincial Hospital. Among them, 34 cases were moderately differentiated, 13 cases were poorly differentiated, and 36 cases were moderately poorly differentiated. The images in the arterial and venous phase (VP) with the lesions at their largest cross section were selected to manually outline the region of interest (ROI) to delineate lesions using open-source software. A total of 396 features were extracted from the ROI using AK software. Spearman correlation analysis and random forest selection by filter (rfSBF) in the caret package of R studio were used to select the discriminating features. The receiver operating characteristic ROC analysis was used to evaluate their discriminative performance. Results Twelve and six features were selected in the arterial and VPs, respectively. The areas under the ROC curve (AUC) in the arterial phase (AP) for diagnosing poorly differentiated, moderately differentiated and moderate-poorly differentiated cases were 0.80, 1, and 0.80 in the training group and 0.77, 1, and 0.77 in the test group; in the VP, the values were 0.81, 1, and 0.82 in the training group and 0.74, 1, and 0.74 in the test group. Conclusion Texture analysis based on contrast-enhanced CT images can be used as an adjunct for the preoperative assessment of the pathological degrees of differentiation of PC.
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Affiliation(s)
- Zhang Longlong
- Department of Radiology, Anhui Provincial Hospital Affiliated to Anhui Medical University, Hefei, China
| | - Li Xinxiang
- Department of Radiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | | | - Wei Wei
- Department of Radiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
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40
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Yalkin O, Uzunoglu MY, Altintoprak F, Muhtaroglu A. Coexisting giant splenic artery aneurysm and non-functioning pancreatic neuroendocrine tumor. Pak J Med Sci 2020; 36:843-845. [PMID: 32494285 PMCID: PMC7260904 DOI: 10.12669/pjms.36.4.1869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
The splenic artery aneurysm (SAA) is rare clinical entity which is the third most common intra-abdominal aneurysm. Pancreatic neuroendocrine tumors (pNETs) are rare malignancies which comprise less than 2% of all pancreatic tumors. Non-functioning pancreatic neuroendocrine tumors set forth up to 90% of all PNETs. Sixty-seven-year-old female presented to our polyclinic with increasing pain in the left upper quadrant in the previous three months. A computed tomographic angiography revealed 13x13x12 cm sized regular bounded aneurysmatic expansion of medium part of splenic artery. In addition there was a 8x7 mm sized hypoecoic lesion in the distal pancreatic tissue. Distal pancreatectomy, splenic aneurysm resection and splenectomy was performed. Pathological results revealed that there was a 12 cm sized giant true splenic aneurysm and 0.7 cm sized neuroendocrine tumor in the pancreatic tissue. This manuscript is presentation of surgical approach to a case with coexistence of these two rare conditions.
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Affiliation(s)
- Omer Yalkin
- Omer Yalkin Department of Surgical Oncology, Bursa City Hospital, Bursa, Turkey
| | - Mustafa Yener Uzunoglu
- Mustafa Yener Uzunoğlu Department of General Surgery, Sakarya Teaching and Research Hospital, Sakarya, Turkey
| | - Fatih Altintoprak
- Fatih Altıntoprak, Department of General Surgery, Sakarya University, Faculty of Medicine, Sakarya, Turkey
| | - Ali Muhtaroglu
- Ali Muhtaroglu, Department of General Surgery, Sakarya University, Faculty of Medicine, Sakarya, Turkey
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41
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Johnston ME, Carter MM, Wilson GC, Ahmad SA, Patel SH. Surgical management of primary pancreatic neuroendocrine tumors. J Gastrointest Oncol 2020; 11:578-589. [PMID: 32655937 PMCID: PMC7340810 DOI: 10.21037/jgo.2019.12.09] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Accepted: 12/24/2019] [Indexed: 12/18/2022] Open
Abstract
Pancreatic neuroendocrine tumors (PanNETs) are the second most common malignancy of the pancreas, and their incidence is increasing. PanNETs are a diverse group of diseases which range from benign to malignant, can be sporadic or associated with genetic mutations, and be functional or nonfunctional. In as much, the treatment and management of PanNETs can vary from a "Wait and See" approach to orthotopic liver transplantation (OLT). Despite this, surgical resection is still the primary treatment modality to achieve cure. This review focuses on the surgical management of PanNETs.
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Affiliation(s)
- Michael E Johnston
- Department of Surgery, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Michela M Carter
- Department of Surgery, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Gregory C Wilson
- Department of Surgery, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Syed A Ahmad
- Department of Surgery, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Sameer H Patel
- Department of Surgery, University of Cincinnati College of Medicine, Cincinnati, OH, USA
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42
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Cloyd JM, Wiseman JT, Pawlik TM. Surgical management of pancreatic neuroendocrine liver metastases. J Gastrointest Oncol 2020; 11:590-600. [PMID: 32655938 PMCID: PMC7340805 DOI: 10.21037/jgo.2019.11.02] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Accepted: 11/13/2019] [Indexed: 12/12/2022] Open
Abstract
Pancreatic neuroendocrine tumors (PNET) are a heterogeneous group of neoplasms that vary in their clinical presentation, behavior and prognosis. The most common site of metastasis is the liver. Surgical resection of neuroendocrine liver metastases (NELM) is thought to afford the best long-term outcomes when feasible. Initial preoperative workup should include surveillance for carcinoid syndrome, screening for evidence of liver insufficiency, and performance of imaging specific to neuroendocrine tumors such as a somatostatin receptor positron emission tomography scan. Standard surgical principles apply to hepatic surgery for NELM, namely prioritizing low central venous pressure anesthesia, minimizing blood loss, knowledge of liver anatomy, generous use of intraoperative ultrasound, as well as safe parenchymal transection techniques and practices to avoid bile leakage. Knowledge of established prognostic factors may assist with patient selection, which is important for optimizing short- and long-term outcomes of hepatic resection. Adjunct therapies such as concomitant liver ablation are used frequently and are generally safe when used appropriately. For patients with synchronous resectable NELM, resection of the primary either in a staged or combined fashion is recommended. Primary tumor resection in the setting of unresectable metastatic disease is more controversial, however generally recommended if morbidity is acceptable. For patients who are not surgical candidates, due to either patient performance status or burden of liver disease, several liver-directed therapies such as transarterial embolization, chemoembolization, and radioembolization are available to assist with locoregional control, extend progression-free survival (PFS), and improve symptoms of carcinoid syndrome. Multiple systemic therapy options exist for patients with metastatic PNET which are often prioritized for those patients with advanced or progressive disease. A systematic approach in a multi-disciplinary setting is likely to result in the best long-term outcomes for patients with pancreatic NELM. Ongoing research is needed to determine the optimal patient selection for hepatic surgery as well as the ideal treatment sequencing for those patients with NELM.
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Affiliation(s)
- Jordan M Cloyd
- Department of Surgery, Division of Surgical Oncology, The Ohio State University Wexner, Columbus, OH, USA
| | - Jason T Wiseman
- Department of Surgery, Division of Surgical Oncology, The Ohio State University Wexner, Columbus, OH, USA
| | - Timothy M Pawlik
- Department of Surgery, Division of Surgical Oncology, The Ohio State University Wexner, Columbus, OH, USA
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Quevedo R, Spreafico A, Bruce J, Danesh A, El Ghamrasni S, Giesler A, Hanna Y, Have C, Li T, Yang SYC, Zhang T, Asa SL, Haibe-Kains B, Krzyzanowska M, Smith AC, Singh S, Siu LL, Pugh TJ. Centromeric cohesion failure invokes a conserved choreography of chromosomal mis-segregations in pancreatic neuroendocrine tumor. Genome Med 2020; 12:38. [PMID: 32345369 PMCID: PMC7189550 DOI: 10.1186/s13073-020-00730-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Accepted: 03/10/2020] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND Pancreatic neuroendocrine tumors (PANETs) are rare, slow growing cancers that often present with local and distant metastasis upon detection. PANETS contain distinct karyotypes, epigenetic dysregulation, and recurrent mutations in MEN1, ATRX, and DAXX (MAD+); however, the molecular basis of disease progression remains uncharacterized. METHODS We evaluated associations between aneuploidy and the MAD+ mutational state of 532 PANETs from 11 published genomic studies and 19 new cases using a combination of exome, targeted panel, shallow WGS, or RNA-seq. We mapped the molecular timing of MAD+ PANET progression using cellular fractions corrected for inferred tumor content. RESULTS In 287 PANETs with mutational data, MAD+ tumors always exhibited a highly recurrent signature of loss of heterozygosity (LOH) and copy-number alterations affecting 11 chromosomes, typically followed by genome doubling upon metastasis. These LOH chromosomes substantially overlap with those that undergo non-random mis-segregation due to ectopic CENP-A localization to flanking centromeric regions in DAXX-depleted cell lines. Using expression data from 122 PANETs, we found decreased gene expression in the regions immediately adjacent to the centromere in MAD+ PANETs. Using 43 PANETs from AACR GENIE, we inferred this signature to be preceded by mutations in MEN1, ATRX, and DAXX. We conducted a meta-analysis on 226 PANETs from 8 CGH studies to show an association of this signature with metastatic incidence. Our study shows that MAD+ tumors are a genetically diverse and aggressive subtype of PANETs that display extensive chromosomal loss after MAD+ mutation, which is followed by genome doubling. CONCLUSIONS We propose an evolutionary model for a subset of aggressive PANETs that is initiated by mutation of MEN1, ATRX, and DAXX, resulting in defects in centromere cohesion from ectopic CENP-A deposition that leads to selective loss of chromosomes and the LOH phenotype seen in late-stage metastatic PANETs. These insights aid in disease risk stratification and nominate potential therapeutic vulnerabilities to treat this disease.
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Affiliation(s)
- Rene Quevedo
- Princess Margaret Cancer Centre, University Health Network, 610 University Avenue, Suite 5-718, Toronto, Ontario, M5G 2M9, Canada.,Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada
| | - Anna Spreafico
- Princess Margaret Cancer Centre, University Health Network, 610 University Avenue, Suite 5-718, Toronto, Ontario, M5G 2M9, Canada.,Division of Medical Oncology and Hematology, University of Toronto, Toronto, Ontario, Canada
| | - Jeff Bruce
- Princess Margaret Cancer Centre, University Health Network, 610 University Avenue, Suite 5-718, Toronto, Ontario, M5G 2M9, Canada
| | - Arnavaz Danesh
- Princess Margaret Cancer Centre, University Health Network, 610 University Avenue, Suite 5-718, Toronto, Ontario, M5G 2M9, Canada
| | - Samah El Ghamrasni
- Princess Margaret Cancer Centre, University Health Network, 610 University Avenue, Suite 5-718, Toronto, Ontario, M5G 2M9, Canada
| | - Amanda Giesler
- Princess Margaret Cancer Centre, University Health Network, 610 University Avenue, Suite 5-718, Toronto, Ontario, M5G 2M9, Canada
| | - Youstina Hanna
- Princess Margaret Cancer Centre, University Health Network, 610 University Avenue, Suite 5-718, Toronto, Ontario, M5G 2M9, Canada
| | - Cherry Have
- Laboratory Medicine Program, University Health Network, Toronto, Ontario, Canada
| | - Tiantian Li
- Princess Margaret Cancer Centre, University Health Network, 610 University Avenue, Suite 5-718, Toronto, Ontario, M5G 2M9, Canada
| | - S Y Cindy Yang
- Princess Margaret Cancer Centre, University Health Network, 610 University Avenue, Suite 5-718, Toronto, Ontario, M5G 2M9, Canada.,Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada
| | - Tong Zhang
- Princess Margaret Cancer Centre, University Health Network, 610 University Avenue, Suite 5-718, Toronto, Ontario, M5G 2M9, Canada.,Laboratory Medicine Program, University Health Network, Toronto, Ontario, Canada
| | - Sylvia L Asa
- Laboratory Medicine Program, University Health Network, Toronto, Ontario, Canada
| | - Benjamin Haibe-Kains
- Princess Margaret Cancer Centre, University Health Network, 610 University Avenue, Suite 5-718, Toronto, Ontario, M5G 2M9, Canada.,Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada.,Department of Computer Science, University of Toronto, Toronto, Ontario, Canada.,Ontario Institute for Cancer Research, Toronto, Ontario, Canada
| | - Monika Krzyzanowska
- Princess Margaret Cancer Centre, University Health Network, 610 University Avenue, Suite 5-718, Toronto, Ontario, M5G 2M9, Canada
| | - Adam C Smith
- Laboratory Medicine Program, University Health Network, Toronto, Ontario, Canada.,Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Canada
| | - Simron Singh
- Susan Leslie Clinic for Neuroendocrine Cancer, Sunnybrook Odette Cancer Center, Toronto, Ontario, Canada
| | - Lillian L Siu
- Princess Margaret Cancer Centre, University Health Network, 610 University Avenue, Suite 5-718, Toronto, Ontario, M5G 2M9, Canada. .,Division of Medical Oncology and Hematology, University of Toronto, Toronto, Ontario, Canada.
| | - Trevor J Pugh
- Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada. .,Ontario Institute for Cancer Research, Toronto, Ontario, Canada. .,Princess Margaret Cancer Centre, University Health Network, 101 College Street, TMDT, Room 9-305, Toronto, Ontario, M5G 1L7, Canada.
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Abstract
OBJECTIVE Given the lack of consensus on surveillance guidelines after pancreatic neuroendocrine tumor (PanNET) resection, we assessed outcomes in a large cohort of patients with nonmetastatic, surgically resected PanNETs. METHODS Data of patients with PanNETs resected between 1990 and 2017 were retrospectively collected using databases at 3 academic institutions. The National Death Index was queried to determine vital status. Kaplan-Meier analysis was used to estimate recurrence-free survival (RFS) and disease-specific survival (DSS) rates. Variables associated with recurrence and disease-related death were identified through Cox multivariate analyses. RESULTS Of 307 patients with PanNET who underwent resection, recurrence occurred in 79 (26%) of patients. For stage I and II disease, 5-year RFS rates were 90% and 43%, whereas 5-year DSS rates were 98% and 86% (P < 0.0001 and P = 0.0038, respectively). For grades 1, 2, and 3 disease, 5-year RFS rates were 87%, 49%, and 18%, and 5-year DSS rates were 98%, 89%, and 51% (P < 0.0001 for both). Stage II, grade 2, and grade 3 disease were each associated with increased recurrence and disease-specific death. CONCLUSIONS Stage and grade are important prognostic factors that should be utilized to tailor postsurgical surveillance after curative resection of PanNET.
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45
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Abstract
Multidetector computed tomography (MDCT) is a widely used cross-sectional imaging modality for initial evaluation of patients with suspected pancreatic ductal adenocarcinoma (PDAC). However, diagnosis of PDAC can be challenging due to numerous pitfalls associated with image acquisition and interpretation, including technical factors, imaging features, and cognitive errors. Accurate diagnosis requires familiarity with these pitfalls, as these can be minimized using systematic strategies. Suboptimal acquisition protocols and other technical errors such as motion artifacts and incomplete anatomical coverage increase the risk of misdiagnosis. Interpretation of images can be challenging due to intrinsic tumor features (including small and isoenhancing masses, exophytic masses, subtle pancreatic duct irregularities, and diffuse tumor infiltration), presence of coexisting pathology (including chronic pancreatitis and intraductal papillary mucinous neoplasm), mimickers of PDAC (including focal fatty infiltration and focal pancreatitis), distracting findings, and satisfaction of search. Awareness of pitfalls associated with the diagnosis of PDAC along with the strategies to avoid them will help radiologists to minimize technical and interpretation errors. Cognizance and mitigation of these errors can lead to earlier PDAC diagnosis and ultimately improve patient prognosis.
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46
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Chatani PD, Agarwal SK, Sadowski SM. Molecular Signatures and Their Clinical Utility in Pancreatic Neuroendocrine Tumors. Front Endocrinol (Lausanne) 2020; 11:575620. [PMID: 33537001 PMCID: PMC7848028 DOI: 10.3389/fendo.2020.575620] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Accepted: 11/30/2020] [Indexed: 12/23/2022] Open
Abstract
Pancreatic neuroendocrine tumors (PNETs) are classified based on their histologic differentiation and proliferative indices, which have been used extensively to determine prognosis. Advances in next-generation sequencing and other high-throughput techniques have allowed researchers to objectively explore tumor specimens and learn about the genetic alterations associated with malignant transformation in PNETs. As a result, targeted, pathway-specific therapies have been emerging for the treatment of unresectable and metastatic disease. As we continue to trial various pharmaceutical products, evidence from studies using multi-omics approaches indicates that clinical aggressiveness stratifies along other genotypic and phenotypic demarcations, as well. In this review, we explore the clinically relevant and potentially targetable molecular signatures of PNETs, their associated trials, and the overall differences in reported prognoses and responses to existing therapies.
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Affiliation(s)
- Praveen Dilip Chatani
- Endocrine Surgery Section, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, United States
| | - Sunita Kishore Agarwal
- Metabolic Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Samira Mercedes Sadowski
- Endocrine Surgery Section, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, United States
- *Correspondence: Samira Mercedes Sadowski,
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47
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Dalal V, Carmicheal J, Dhaliwal A, Jain M, Kaur S, Batra SK. Radiomics in stratification of pancreatic cystic lesions: Machine learning in action. Cancer Lett 2019; 469:228-237. [PMID: 31629933 DOI: 10.1016/j.canlet.2019.10.023] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 10/03/2019] [Accepted: 10/15/2019] [Indexed: 12/15/2022]
Abstract
Pancreatic cystic lesions (PCLs) are well-known precursors of pancreatic cancer. Their diagnosis can be challenging as their behavior varies from benign to malignant disease. Precise and timely management of malignant pancreatic cysts might prevent transformation to pancreatic cancer. However, the current consensus guidelines, which rely on standard imaging features to predict cyst malignancy potential, are conflicting and unclear. This has led to an increased interest in radiomics, a high-throughput extraction of comprehensible data from standard of care images. Radiomics can be used as a diagnostic and prognostic tool in personalized medicine. It utilizes quantitative image analysis to extract features in conjunction with machine learning and artificial intelligence (AI) methods like support vector machines, random forest, and convolutional neural network for feature selection and classification. Selected features can then serve as imaging biomarkers to predict high-risk PCLs. Radiomics studies conducted heretofore on PCLs have shown promising results. This cost-effective approach would help us to differentiate benign PCLs from malignant ones and potentially guide clinical decision-making leading to better utilization of healthcare resources. In this review, we discuss the process of radiomics, its myriad applications such as diagnosis, prognosis, and prediction of therapy response. We also discuss the outcomes of studies involving radiomic analysis of PCLs and pancreatic cancer, and challenges associated with this novel field along with possible solutions. Although these studies highlight the potential benefit of radiomics in the prevention and optimal treatment of pancreatic cancer, further studies are warranted before incorporating radiomics into the clinical decision support system.
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Affiliation(s)
- Vipin Dalal
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Joseph Carmicheal
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Amaninder Dhaliwal
- Department of Gastroenterology and Hepatology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Maneesh Jain
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA; Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE, USA; The Fred and Pamela Buffet Cancer Center, University of Nebraska Medical Center, Omaha, NE, USA
| | - Sukhwinder Kaur
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Surinder K Batra
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA; Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE, USA; The Fred and Pamela Buffet Cancer Center, University of Nebraska Medical Center, Omaha, NE, USA.
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48
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Ma W, Wei M, Han Z, Tang Y, Pan Q, Zhang G, Ren J, Huan Y, Li N. The added value of intravoxel incoherent motion diffusion weighted imaging parameters in differentiating high-grade pancreatic neuroendocrine neoplasms from pancreatic ductal adenocarcinoma. Oncol Lett 2019; 18:5448-5458. [PMID: 31612053 PMCID: PMC6781772 DOI: 10.3892/ol.2019.10863] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2018] [Accepted: 08/16/2019] [Indexed: 12/13/2022] Open
Abstract
The aim of the present study was to investigate the potential significance of intravoxel incoherent motion (IVIM)-diffusion weighted imaging (DWI) in differentiating high-grade pancreatic neuroendocrine neoplasms (pNENs) from pancreatic ductal adenocarcinoma (PDAC). A total of 50 patients, including 37 patients with PDAC and 13 patients with high-grade pNENs, underwent pancreatic multiple b-values DWI with 15 b-values including 0, 10, 20, 40, 60, 80, 100, 150, 200, 400, 800, 1,000, 1,200, 1,500 and 2,000 sec/mm2. Standard apparent diffusion coefficient (ADCstandard) and IVIM parameter [slow apparent diffusion coefficient (Dslow), fast apparent diffusion coefficient (Dfast), fraction of fast apparent diffusion coefficient (ƒ)] values of PDAC and pNENs were compared. P<0.05 was considered to indicate a statistically significant difference. Receiver operating characteristics analysis was performed in order to evaluate the diagnostic potential of IVIM parameters for differentiating high-grade pNENs from PDAC. Dslow of pNENs was significantly lower compared with that of PDAC (0.460 vs. 0.579×10−3 mm2/sec; P=0.001). Dfast of pNENs was significantly higher compared with that of PDAC (13.361 vs. 4.985×10−3 mm2/sec; P<0.001). Area under the curve of Dslow, Dfast and combined Dslow and Dfast was 0.793, 0.863 and 0.885 respectively. The specificity and sensitivity of Dslow≤0.472×10−3 mm2/sec were 97.3 and 53.9%, respectively, for differentiating high-grade pNENs from PDAC. The specificity and sensitivity of Dfast >9.58×10−3 mm2/sec were 91.9 and 69.2%, respectively, for differentiating high-grade pNENs from PDAC. When Dslow and Dfast were combined, the specificity and sensitivity for differentiating high-grade pNENs from PDAC were 76.9 and 100%, respectively. Taken together, these results indicated that the diffusion-associated parameter Dslow and the perfusion-associated parameter Dfast of IVIM-DWI may differentiate high-grade pNENs from PDAC with high diagnostic accuracy, and that IVIM-DWI may be a valuable biomarker in differentiating pancreatic neoplasms.
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Affiliation(s)
- Wanling Ma
- Department of Radiology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Mengqi Wei
- Department of Radiology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Zhiwei Han
- Department of Radiology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Yongqiang Tang
- Department of Radiology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Qi Pan
- Department of Radiology, Second Affiliated Hospital of Xi'an Medical Collage, Xi'an, Shaanxi 710038, P.R. China
| | - Guangwen Zhang
- Department of Radiology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Jing Ren
- Department of Radiology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Yi Huan
- Department of Radiology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Na Li
- Department of Radiology, Ninth Hospital of Xi'an City, Xi'an, Shaanxi 710068, P.R. China
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Fang JM, Shi J. A Clinicopathologic and Molecular Update of Pancreatic Neuroendocrine Neoplasms With a Focus on the New World Health Organization Classification. Arch Pathol Lab Med 2019; 143:1317-1326. [PMID: 31509453 DOI: 10.5858/arpa.2019-0338-ra] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
CONTEXT.— According to the 2017 World Health Organization classification, pancreatic neuroendocrine neoplasms (PanNENs) include a new category of pancreatic neuroendocrine tumor, grade 3, which is often difficult to differentiate from pancreatic neuroendocrine carcinoma. However, pancreatic neuroendocrine tumor grade 3 and pancreatic neuroendocrine carcinoma are distinct entities with very different clinical presentation, prognosis, and therapeutic strategies. Recent discoveries on the molecular characteristics of pancreatic neuroendocrine tumors also play an essential role in the pathologic differential diagnosis of PanNENs. In addition, the histopathologic varieties of PanNENs bring in many differential diagnoses with other pancreatic neoplasms, especially acinar cell carcinoma, solid pseudopapillary neoplasm, and ductal adenocarcinoma. OBJECTIVE.— To provide a brief update of the World Health Organization classification; the clinical, histopathologic, immunohistochemical, and molecular characteristics; and the differential diagnoses and biological behavior of PanNENs. DATA SOURCES.— Analysis of the pertinent literature (PubMed) and authors' clinical practice experience based on institutional and consultation materials. CONCLUSIONS.— The evolving clinical, histopathologic, immunohistochemical, and molecular features of PanNENs are reviewed. Important differential diagnoses with other neoplasms of the pancreas are discussed.
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Affiliation(s)
- Jiayun M Fang
- From the Department of Pathology, University of Michigan, Ann Arbor
| | - Jiaqi Shi
- From the Department of Pathology, University of Michigan, Ann Arbor
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A Novel Validated Recurrence Risk Score to Guide a Pragmatic Surveillance Strategy After Resection of Pancreatic Neuroendocrine Tumors: An International Study of 1006 Patients. Ann Surg 2019; 270:422-433. [PMID: 31283562 PMCID: PMC6697205 DOI: 10.1097/sla.0000000000003461] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
OBJECTIVE Despite heterogeneous biology, similar surveillance schemas are utilized after resection of all pancreatic neuroendocrine tumors (PanNETs). Given concerns regarding excess radiation exposure and financial burden, our aim was to develop a prognostic score for disease recurrence to guide individually tailored surveillance strategies. METHODS All patients with primary nonfunctioning, nonmetastatic well/moderately differentiated PanNETs who underwent curative-intent resection at 9-institutions from 2000 to 2016 were included (n = 1006). A Recurrence Risk Score (RRS) was developed from a randomly selected derivation cohort comprised of 67% of patients and verified on the validation-cohort comprised of the remaining 33%. RESULTS On multivariable analysis, patients within the derivation cohort (n = 681) with symptomatic tumors (jaundice, pain, bleeding), tumors >2 cm, Ki67 >3%, and lymph node (LN) (+) disease had increased recurrence. Each factor was assigned a score based on their weighted odds ratio that formed a RRS of 0 to 10: symptomatic = 1, tumor >2 cm = 2, Ki67 3% to 20% = 1, Ki67 >20% = 6, LN (+) = 1. Patients were grouped into low- (RRS = 0-2; n = 247), intermediate-(RRS = 3-5; n = 204), or high (RRS = 6-10; n = 9)-risk groups. At 24 months, 33% of high RRS recurred, whereas only 2% of low and 14% of intermediate RRS recurred. This persisted in the validation cohort (n = 325). CONCLUSIONS This international, novel, internally validated RRS accurately stratifies recurrence-free survival for patients with resected PanNETs. Given their unique recurrence patterns, surveillance intervals of 12, 6, and 3 months are proposed for low, intermediate, and high RRS patients, respectively, to minimize radiation exposure and optimize cost/resource utilization.
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