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Luecke S, Fottner C, Lahner H, Jann H, Zolnowski D, Quietzsch D, Grabowski P, Cremer B, Maasberg S, Pape UF, Mueller HH, Gress TM, Rinke A. Treatment Approaches and Outcome of Patients with Neuroendocrine Neoplasia Grade 3 in German Real-World Clinical Practice. Cancers (Basel) 2022; 14:cancers14112718. [PMID: 35681701 PMCID: PMC9179270 DOI: 10.3390/cancers14112718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 05/20/2022] [Accepted: 05/25/2022] [Indexed: 12/04/2022] Open
Abstract
Simple Summary Grade 3 neuroendocrine neoplasms (NEN G3) are a rare and heterogeneous subtype of NEN and include poorly differentiated neuroendocrine carcinomas and well-differentiated neuroendocrine tumors G3 (NET G3). Standard chemotherapy with platinum plus etoposide may not be appropriate for all subgroups, but more tailored approaches suffer from the lack of data. In our study, we provide real-world data from a large center-based cohort of the German NET Registry and hope to stimulate efforts to conduct clinical trials for well-defined entities. Abstract Background: Neuroendocrine neoplasia grade 3 (NEN G3) represents a rare and heterogeneous cancer type with a poor prognosis. The aim of our study was to analyze real-world data from the German NET Registry with a focus on therapeutic and prognostic aspects. Methods: NEN G3 patients were identified within the German NET Registry. Demographic data and data on treatments and outcomes were retrieved. Univariate analyses were performed using the Kaplan–Meier-method. Multivariate analysis was performed using a Cox proportional hazard model. Results: Of 445 included patients, 318 (71.5%) were diagnosed at stage IV. Well-differentiated morphology (NET G3) was described in 31.7%, 60% of cases were classified as neuroendocrine carcinoma (NEC), and the median Ki67 value was 50%. First-line treatment comprised chemotherapy in 43.8%, with differences in the choice of regimen with regard to NET or NEC, and surgery in 41.6% of patients. Median overall survival for the entire cohort was 31 months. Stage, performance status and Ki67 were significant prognostic factors in multivariate analysis. Conclusions: The survival data of our national registry compare favorably to population-based data, probably mainly because of a relatively low median Ki67 of 50%. Nevertheless, the best first- and second-line approaches for specific subgroups remain unclear, and an international effort to fill these gaps is needed.
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Affiliation(s)
- Simone Luecke
- UKGM Marburg, Department of Gastroenterology, Philipps University Marburg, 35037 Marburg, Germany; (S.L.); (T.M.G.)
| | - Christian Fottner
- Department of Internal Medicine I, Endocrinology, University Hospital Mainz, 55131 Mainz, Germany;
| | - Harald Lahner
- Department of Endocrinology and Metabolism, University Hospital of Essen, 45147 Essen, Germany;
| | - Henning Jann
- Department of Gastroenterology and Hepatology, Campus Virchow Klinikum, University Medicine Charité, 10117 Berlin, Germany;
| | | | - Detlef Quietzsch
- Praxis Dr. med. habil. Diener, 09376 Oelsnitz/Erzgebirge, Germany;
| | - Patricia Grabowski
- Klinikum Havelhöhe, Campus Virchow Klinikum, Institute of Medical Immunology, MVZ Oncology, University Medicine Charité, 10117 Berlin, Germany;
| | - Birgit Cremer
- Department of Oncology, University Hospital of Cologne, 50923 Cologne, Germany;
| | - Sebastian Maasberg
- Department of Internal Medicine and Gastroenterology, Asklepios Klinik St. Georg, 20099 Hamburg, Germany; (S.M.); (U.-F.P.)
| | - Ulrich-Frank Pape
- Department of Internal Medicine and Gastroenterology, Asklepios Klinik St. Georg, 20099 Hamburg, Germany; (S.M.); (U.-F.P.)
| | - Hans-Helge Mueller
- Institute of Medical Biometry and Epidemiology, Philipps University Marburg, 35037 Marburg, Germany;
| | - Thomas Matthias Gress
- UKGM Marburg, Department of Gastroenterology, Philipps University Marburg, 35037 Marburg, Germany; (S.L.); (T.M.G.)
| | - Anja Rinke
- UKGM Marburg, Department of Gastroenterology, Philipps University Marburg, 35037 Marburg, Germany; (S.L.); (T.M.G.)
- Correspondence:
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Que QY, Zhang LC, Bao JQ, Ling SB, Xu X. Role of surgical treatments in high-grade or advanced gastroenteropancreatic neuroendocrine neoplasms. World J Gastrointest Surg 2022; 14:397-408. [PMID: 35734618 PMCID: PMC9160682 DOI: 10.4240/wjgs.v14.i5.397] [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: 10/25/2021] [Revised: 01/19/2022] [Accepted: 04/09/2022] [Indexed: 02/06/2023] Open
Abstract
Over the last 40 years, the incidence and prevalence of gastroenteropancreatic neuroendocrine neoplasms (GEP-NENs) have continued to increase. Compared to other epithelial neoplasms in the same organ, GEP-NENs exhibit indolent biological behavior, resulting in more chances to undergo surgery. However, the role of surgery in high-grade or advanced GEP-NENs is still controversial. Surgery is associated with survival improvement of well-differentiated high-grade GEP-NENs, whereas poorly differentiated GEP-NENs that may benefit from resection require careful selection based on Ki67 and other tissue biomarkers. Additionally, surgery also plays an important role in locally advanced and metastatic disease. For locally advanced GEP-NENs, isolated major vascular involvement is no longer an absolute contraindication. In the setting of metastatic GEP-NENs, radical intended surgery is recommended for patients with low-grade and resectable metastases. For unresectable metastatic disease, a variety of surgical approaches, including cytoreduction of liver metastasis, liver transplantation, and surgery after neoadjuvant treatment, show survival benefits. Primary tumor resection in GEP-NENs with unresectable metastatic disease is associated with symptom control, prolonged survival, and improved sensitivity toward systemic therapies. Although there is no established neoadjuvant or adjuvant strategy, increasing attention has been given to this emerging research area. Some studies have reported that neoadjuvant therapy effectively reduces tumor burden, improves the effectiveness of subsequent surgery, and decreases surgical complications.
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Affiliation(s)
- Qing-Yang Que
- Key Laboratory of Integrated Oncology and Intelligent Medicine of Zhejiang Province, Hangzhou 310006, Zhejiang Province, China
- Zhejiang University Cancer Center, Hangzhou 310006, Zhejiang Province, China
- NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou 310006, Zhejiang Province, China
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hangzhou First People’s Hospital, Zhejiang University School of Medicine, Hangzhou 310006, Zhejiang Province, China
| | - Lin-Cheng Zhang
- Key Laboratory of Integrated Oncology and Intelligent Medicine of Zhejiang Province, Hangzhou 310006, Zhejiang Province, China
- Zhejiang University Cancer Center, Hangzhou 310006, Zhejiang Province, China
- NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou 310006, Zhejiang Province, China
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hangzhou First People’s Hospital, Zhejiang University School of Medicine, Hangzhou 310006, Zhejiang Province, China
| | - Jia-Qi Bao
- Key Laboratory of Integrated Oncology and Intelligent Medicine of Zhejiang Province, Hangzhou 310006, Zhejiang Province, China
- Zhejiang University Cancer Center, Hangzhou 310006, Zhejiang Province, China
- NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou 310006, Zhejiang Province, China
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hangzhou First People’s Hospital, Zhejiang University School of Medicine, Hangzhou 310006, Zhejiang Province, China
| | - Sun-Bin Ling
- Key Laboratory of Integrated Oncology and Intelligent Medicine of Zhejiang Province, Hangzhou 310006, Zhejiang Province, China
- Zhejiang University Cancer Center, Hangzhou 310006, Zhejiang Province, China
- NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou 310006, Zhejiang Province, China
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hangzhou First People’s Hospital, Zhejiang University School of Medicine, Hangzhou 310006, Zhejiang Province, China
| | - Xiao Xu
- Key Laboratory of Integrated Oncology and Intelligent Medicine of Zhejiang Province, Hangzhou 310006, Zhejiang Province, China
- Zhejiang University Cancer Center, Hangzhou 310006, Zhejiang Province, China
- NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou 310006, Zhejiang Province, China
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hangzhou First People’s Hospital, Zhejiang University School of Medicine, Hangzhou 310006, Zhejiang Province, China
- Institute of Organ Transplantation, Zhejiang University, Hangzhou 310003, Zhejiang Province, China
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Li MX, Lopez-Aguiar AG, Poultsides G, Rocha F, Weber S, Fields R, Idrees K, Cho C, Maithel SK, Zhang XF, Pawlik TM. Surgical outcomes of gastro-entero-pancreatic neuroendocrine tumors G3 versus neuroendocrine carcinoma. J Surg Oncol 2022; 126:689-697. [PMID: 35616186 DOI: 10.1002/jso.26928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Accepted: 05/05/2022] [Indexed: 11/10/2022]
Abstract
BACKGROUND To define surgical outcomes of patients with high-grade gastro-entero-pancreatic neuroendocrine neoplasm grade G3 (GEP-NEN G3). METHODS Patients who underwent surgical resection between 2000 and 2016 were identified. The overall survival (OS) and recurrence-free survival (RFS) of patients with gastro-entero-pancreatic neuroendocrine tumors grade G3 (GEP-NET G3) versus neuroendocrine carcinoma (NEC) were evaluated. RESULTS Fifty-one out of 2182 (2.3%) patients who underwent surgical resection were diagnosed as GEP-NEN G3. The pancreas was the most common primary site (n = 3772.5%). A majority of patients had lymph node metastasis (n = 3262.7%); one in three (n = 1631.4%) had distant metastasis. The median OS and RFS of the entire cohort were 56.4 and 34.5 months, respectively. Perineural invasion was a strong prognostic factor associate with OS after surgical resection. Patients with NEC had a worse survival outcome versus patients with NET G3 (median OS: 33.1 months vs. not attained, p = 0.088). In contrast, among patients who underwent curative-intent resection, patients with NEC had comparable RFS versus patients with NET G3 (median RFS: 35.6 vs. 33.9 months, p = 0.774). CONCLUSIONS Surgical resection provided acceptable short- and long-outcomes for well-selected patients with resectable GEP-NEN G3. NEC was associated with a worse OS versus NET G3.
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Affiliation(s)
- Mu-Xing Li
- Department of Hepatobiliary Surgery, Institute of Advanced Surgical Technology and Engineering, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Department of General Surgery, Yan'an Hospital of Traditional Chinese Medicine, Peking University Third Hospital, Beijing, China
| | - Alexandra G Lopez-Aguiar
- Department of Surgery, Division of Surgical Oncology, Winship Cancer Institute, Emory University, Atlanta, Georgia, USA
| | - George Poultsides
- Department of Surgery, Stanford University, Palo Alto, California, USA
| | - Flavio Rocha
- Department of Surgery, Virginia Mason Medical Center, Seattle, Washington, USA
| | - Sharon Weber
- Department of Surgery, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, USA
| | - Ryan Fields
- Department of Surgery, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Kamran Idrees
- Department of Surgery, Division of Surgical Oncology, Vanderbilt University, Nashville, Tennessee, USA
| | - Cliff Cho
- Department of Surgery, Division of Hepatopancreatobiliary and Advanced Gastrointestinal Surgery, University of Michigan, Ann Arbor, Michigan, USA
| | - Shishir K Maithel
- Department of Surgery, Division of Surgical Oncology, Winship Cancer Institute, Emory University, Atlanta, Georgia, USA
| | - Xu-Feng Zhang
- Department of Hepatobiliary Surgery, Institute of Advanced Surgical Technology and Engineering, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Division of Surgical Oncology, The Ohio State University Wexner Medical Center and James Comprehensive Cancer Center, Columbus, Ohio, USA
| | - Timothy M Pawlik
- Division of Surgical Oncology, The Ohio State University Wexner Medical Center and James Comprehensive Cancer Center, Columbus, Ohio, USA
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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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Holmager P, Langer SW, Kjaer A, Ringholm L, Garbyal RS, Pommergaard HC, Hansen CP, Federspiel B, Andreassen M, Knigge U. Surgery in Patients with Gastro-Entero-Pancreatic Neuroendocrine Carcinomas, Neuroendocrine Tumors G3 and High Grade Mixed Neuroendocrine-Non-Neuroendocrine Neoplasms. Curr Treat Options Oncol 2022; 23:806-817. [PMID: 35362798 DOI: 10.1007/s11864-022-00969-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/16/2022] [Indexed: 12/19/2022]
Abstract
OPINION STATEMENT In the 2019 WHO guidelines, the classification of gastro-entero-pancreatic neuroendocrine neoplasms (GEP NEN) has changed from one being based on Ki-67 proliferation index alone to one that also includes tumor differentiation. Consequently, GEP NENs are now classified as well-differentiated neuroendocrine tumor (NET), NET G1 (Ki-67 <3%), NET G2 (Ki-67 3-20%) and NET G3 (Ki-67 >20%), and poorly differentiated neuroendocrine carcinoma (NEC) (Ki-67 >20%). It has been suggested that NET G3 should be treated as NET G2 with respect to surgery, while surgical management of NEC should be expanded from local disease to also include patients with advanced disease where curative surgery is possible. High grade mixed neuroendocrine-non-neuroendocrine neoplasms (MiNEN) have a neuroendocrine and a non-neuroendocrine component mostly with a poor prognosis. All studies evaluating the effect of surgery in NEC and MiNEN are observational and hold a risk of selection bias, which may overestimate the beneficial effect of surgery. Further, only a few studies on the effect of surgery in MiNEN exist. This review aims to summarize the data on the outcome of surgery in patients with GEP NET G3, GEP NEC and high grade MiNEN. The current evidence suggests that patients with NEN G3 and localized disease and NEN G3 patients with metastatic disease where curative surgery can be achieved may benefit from surgery. In patients with MiNEN, it is currently not possible to evaluate on the potential beneficial effect of surgery due to the low number of studies.
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Affiliation(s)
- Pernille Holmager
- ENETS Neuroendocrine Tumor Centre of Excellence, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark. .,Department of Endocrinology and Metabolism, Copenhagen University Hospital-Rigshospitalet, Ole Maaløes Vej 24, DK-2200, Copenhagen, Denmark.
| | - Seppo W Langer
- ENETS Neuroendocrine Tumor Centre of Excellence, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark.,Department of Oncology, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark.,Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Andreas Kjaer
- ENETS Neuroendocrine Tumor Centre of Excellence, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark.,Department of Clinical Physiology, Nuclear Medicine and PET and Cluster for Molecular Imaging, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark.,Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Lene Ringholm
- ENETS Neuroendocrine Tumor Centre of Excellence, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark.,Department of Endocrinology and Metabolism, Copenhagen University Hospital-Rigshospitalet, Ole Maaløes Vej 24, DK-2200, Copenhagen, Denmark
| | - Rajendra Singh Garbyal
- ENETS Neuroendocrine Tumor Centre of Excellence, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark.,Department of Pathology, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark
| | - Hans-Christian Pommergaard
- ENETS Neuroendocrine Tumor Centre of Excellence, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark.,Department of Surgery and Transplantation, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark
| | - Carsten Palnæs Hansen
- ENETS Neuroendocrine Tumor Centre of Excellence, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark.,Department of Surgery and Transplantation, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark
| | - Birgitte Federspiel
- ENETS Neuroendocrine Tumor Centre of Excellence, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark.,Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Mikkel Andreassen
- ENETS Neuroendocrine Tumor Centre of Excellence, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark.,Department of Endocrinology and Metabolism, Copenhagen University Hospital-Rigshospitalet, Ole Maaløes Vej 24, DK-2200, Copenhagen, Denmark.,Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Ulrich Knigge
- ENETS Neuroendocrine Tumor Centre of Excellence, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark.,Department of Endocrinology and Metabolism, Copenhagen University Hospital-Rigshospitalet, Ole Maaløes Vej 24, DK-2200, Copenhagen, Denmark.,Department of Surgery and Transplantation, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark
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Liu X, Wei M, Zhu Y, Wang Z. Letter to the Editor on “diagnosis and treatment of small rectal neuroendocrine tumors with simultaneous lateral lymph nodes metastasis”. Asian J Surg 2022; 45:1794-1796. [DOI: 10.1016/j.asjsur.2022.03.104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 03/24/2022] [Indexed: 11/02/2022] Open
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How to Select Patients Affected by Neuroendocrine Neoplasms for Surgery. Curr Oncol Rep 2022; 24:227-239. [DOI: 10.1007/s11912-022-01200-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/10/2021] [Indexed: 11/03/2022]
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Shi M, Fan Z, Xu J, Yang J, Li Y, Gao C, Su P, Wang X, Zhan H. Gastroenteropancreatic neuroendocrine neoplasms G3: Novel insights and unmet needs. Biochim Biophys Acta Rev Cancer 2021; 1876:188637. [PMID: 34678439 DOI: 10.1016/j.bbcan.2021.188637] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 09/30/2021] [Accepted: 10/14/2021] [Indexed: 12/12/2022]
Abstract
According to the 2019 WHO pathology grading system, high-grade gastroenteropancreatic neuroendocrine neoplasms (GEP-NENs) can be divided into well differentiated neuroendocrine tumors G3 (NETs G3) and poorly differentiated neuroendocrine carcinomas (NECs). GEP-NETs G3 and GEP-NECs present significant differences in driver genes and disease origin. NETs G3 and NECs have been confirmed to be two distinct diseases with different genetic backgrounds, however, this issue remains controversial. The prognosis of NETs G3 is significantly better than that of NECs. The differential diagnosis of GEP-NETs G3 and GEP-NECs should be combined with the patient's medical history, tumor histopathology, Ki-67 index, DAXX/ATRX, TP53 and Rb expression as well as other immunohistochemical indicators. In addition, the treatment strategies of these two subgroups are very different. Here, we summarize recent findings focused on the genomics, clinical manifestations, diagnosis, treatment and other aspects of high-grade GEP-NENs (G3). This review may help further our understanding of the carcinogenesis, diagnosis and treatment of GEP-NENs G3.
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Affiliation(s)
- Ming Shi
- Division of Pancreatic Surgery, Department of General Surgery, Qilu Hospital, Shandong University, Jinan 250012, China
| | - Zhiyao Fan
- Division of Pancreatic Surgery, Department of General Surgery, Qilu Hospital, Shandong University, Jinan 250012, China
| | - Jianwei Xu
- Division of Pancreatic Surgery, Department of General Surgery, Qilu Hospital, Shandong University, Jinan 250012, China
| | - Jian Yang
- Division of Pancreatic Surgery, Department of General Surgery, Qilu Hospital, Shandong University, Jinan 250012, China
| | - Yongzheng Li
- Division of Pancreatic Surgery, Department of General Surgery, Qilu Hospital, Shandong University, Jinan 250012, China
| | - Changhao Gao
- Division of Pancreatic Surgery, Department of General Surgery, Qilu Hospital, Shandong University, Jinan 250012, China
| | - Peng Su
- Department of Pathology, Qilu Hospital, Shandong University, Jinan 250012, China
| | - Xiao Wang
- Department of Pathology, Qilu Hospital, Shandong University, Jinan 250012, China
| | - Hanxiang Zhan
- Division of Pancreatic Surgery, Department of General Surgery, Qilu Hospital, Shandong University, Jinan 250012, China.
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Rossi RE. Neuroendocrine liver metastases treatment strategies: a viewpoint. Hepatobiliary Surg Nutr 2021; 10:561-563. [PMID: 34430544 DOI: 10.21037/hbsn-21-178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 06/03/2021] [Indexed: 11/06/2022]
Affiliation(s)
- Roberta Elisa Rossi
- Department of Hepatology, Hepato Pancreatic Biliary, Surgery and Liver Transplantation, ENETS Center of Excellence, Fondazione IRCCS Istituto Nazionale Tumori (INT, National Cancer Institute), Milan, Italy.,Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
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10
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Wang Z, Liu Z, Wen Z, Li R, An K, Mei S, Chen J, Shen H, Li J, Zhao F, Wei F, Xiao T, Liu Q. Evaluation of radical surgical treatment in the management of 58 locally advanced rectal neuroendocrine neoplasms, one multicenter retrospective study. Eur J Surg Oncol 2021; 47:3166-3174. [PMID: 34294465 DOI: 10.1016/j.ejso.2021.07.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Revised: 06/07/2021] [Accepted: 07/13/2021] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Locally advanced rectal neuroendocrine neoplasms (NENs) are rare, and the therapeutic effects of surgery in improving the prognosis have been questioned in previous reports. MATERIALS AND METHODS The research included 58 consecutive patients with locally advanced rectal NENs from three Chinese medical centers between 2000 and 2020. All have received radical surgical treatment. The clinicopathological and survival data were collected. Kaplan-Meier methods and a Cox proportional hazards regression model were used to evaluate the prognosis and identify independent prognostic factors. RESULTS All patients were followed up for a median period of 36 (2-125) months. Of the 58 patients, 13 (22.4%) had G1 neuroendocrine tumors (NETs), 15 (25.9%) had G2 NETs, 6 (10.3%) had G3 NETs, and the remaining 24 (41.4%) patients had G3 neuroendocrine carcinomas (NECs). The 1-year and 3-year disease-free survival (DFS) rates were 64.5% and 48.8%, respectively. The 1-year and 3-year overall survival (OS) rates were 90.5% and 75.4%, respectively. Univariate analysis demonstrated that tumor differentiation (p = 0.002), gross morphology (p = 0.009), T stage (p = 0.024), and extramural vascular invasion (p = 0.009) were associated with the OS. The subsequent multivariate analysis confirmed that tumor differentiation [hazard ratio (HR) = 6.002, 95% confidence interval (CI): 1.210-29.767, p = 0.028] and gross morphology (HR = 3.438, 95% CI: 1.038-11.382, p = 0.043) were independent prognostic factors affecting the clinical outcomes. CONCLUSIONS Rectal NENs are a heterogeneous group of diseases. The survival benefits obtained from surgery vary widely based on the tumor clinicopathological features. Patients with G3 NECs and ulcerative mass are at high risks of poor prognosis.
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Affiliation(s)
- Zhijie Wang
- Department of Colorectal Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Zheng Liu
- Department of Colorectal Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Zelin Wen
- Department of General Surgery, Yongchuan Hospital, Chongqing Medical University, Chongqing, 402160, China
| | - Rui Li
- Department of General Surgery, Beijing Hospital, Beijing, 100730, China
| | - Ke An
- Department of General Surgery, China-Japan Friendship Hospital, Beijing, 100029, China
| | - Shiwen Mei
- Department of Colorectal Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Jianan Chen
- Department of Colorectal Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Haiyu Shen
- Department of Colorectal Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Juan Li
- Department of Colorectal Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Fuqiang Zhao
- Department of Colorectal Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Fangze Wei
- Department of Colorectal Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Tixian Xiao
- Department of Colorectal Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Qian Liu
- Department of Colorectal Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China.
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Pommergaard HC, Nielsen K, Sorbye H, Federspiel B, Tabaksblat EM, Vestermark LW, Janson ET, Hansen CP, Ladekarl M, Garresori H, Hjortland GO, Sundlöv A, Galleberg R, Knigge P, Kjaer A, Langer SW, Knigge U. Surgery of the primary tumour in 201 patients with high-grade gastroenteropancreatic neuroendocrine and mixed neuroendocrine-non-neuroendocrine neoplasms. J Neuroendocrinol 2021; 33:e12967. [PMID: 33769624 DOI: 10.1111/jne.12967] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Revised: 02/18/2021] [Accepted: 03/10/2021] [Indexed: 12/30/2022]
Abstract
The benefit of surgery in high-grade gastroenteropancreatic neuroendocrine neoplasms (GEP NEN) and mixed neuroendocrine-non-neuroendocrine neoplasms (MiNEN) is uncertain. The present study aimed to investigate outcomes after tumour surgery in patients with high-grade (Ki-67 > 20%) GEP NEN or MiNEN stage I-III or stage IV. We analysed data from patients treated in the period 2007-2015 at eight Nordic university hospitals. Overall survival (OS) and progression-free survival (PFS)/disease-free survival (DFS) were analysed by Kaplan-Meier estimates. Prognostic factors were evaluated using Cox regression. We included 201 surgically resected patients, 143 stage I-III and 58 stage IV, with 68% having neuroendocrine carcinoma, 23% MiNEN, 5% neuroendocrine tumour G3 and 4% uncertain NEN G3. Primary tumours were located in colon/rectum (52%), oesophagus/cardia (19%), pancreas (10%), stomach (7%), jejunum/ileum (5%), duodenum (4%), gallbladder (2%) and anal canal (1%). For patients with stage I-III, median DFS was 12 months (95% confidence interval [CI] = 5.5-18.5) and median OS was 32 months (95% CI = 24.0-40.0). For patients with stage I-III and an R0 resection, median DFS was 21 months (95% CI = 4.9-37.1) and median OS was 39 months (95% CI = 25.0-53.0). For patients with stage IV, median PFS/DFS was 4 months (95% CI = 1.9-6.1) and median OS was 11 months (95% CI = 4.8-17.2). For patients with stage IV and an R0 resection, median DFS was 6 months (95% CI = 0-16.4) and median OS was 32 months (95% CI = 25.5-38.5). Performance status > 1 and colorectal primary were associated with poor prognosis. There was no difference in survival between patients with high-grade GEP NEN and MiNEN. Surgery of the primary tumour in patients with loco-regional high-grade GEP NEN or MiNEN led to good long-term results and should be considered if an R0 resection is considered achievable. Highly selected patients with stage IV disease may also benefit from surgery.
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Affiliation(s)
- Hans-Christian Pommergaard
- ENETS Neuroendocrine Tumor Centre of Excellence, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- Department of Surgery and Transplantation, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Kirstine Nielsen
- ENETS Neuroendocrine Tumor Centre of Excellence, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- Department of Surgery and Transplantation, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- Department of Endocrinology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Halfdan Sorbye
- Department of Oncology, Haukeland University Hospital, Bergen, Norway
- Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Birgitte Federspiel
- ENETS Neuroendocrine Tumor Centre of Excellence, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- Department of Pathology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Elizaveta M Tabaksblat
- ENETS Neuroendocrine Tumor Centre of Excellence, Aarhus University Hospital, Aarhus, Denmark
- Department of Oncology, Aarhus University Hospital, Aarhus, Denmark
| | | | - Eva T Janson
- ENETS Neuroendocrine Tumor Centre of Excellence, Uppsala University Hospital, Uppsala, Sweden
- Department of Medical Sciences, Endocrine Oncology, Uppsala University, Uppsala, Sweden
| | - Carsten P Hansen
- ENETS Neuroendocrine Tumor Centre of Excellence, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- Department of Surgery and Transplantation, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Morten Ladekarl
- ENETS Neuroendocrine Tumor Centre of Excellence, Aarhus University Hospital, Aarhus, Denmark
- Department of Oncology, Aarhus University Hospital, Aarhus, Denmark
- Department of Oncology, Clinical Cancer Research Center, Aalborg University Hospital, Aalborg, Denmark
| | - Herish Garresori
- Department of Oncology, Stavanger University Hospital, Stavanger, Norway
| | - Geir O Hjortland
- ENETS Neuroendocrine Tumor Centre of Excellence, Oslo University Hospital, Oslo, Norway
- Department of Oncology, Oslo University Hospital, Oslo, Norway
| | - Anna Sundlöv
- Department of Oncology, Skåne University Hospital, Lund, Sweden
| | - Renate Galleberg
- Department of Oncology, Haukeland University Hospital, Bergen, Norway
| | - Pauline Knigge
- ENETS Neuroendocrine Tumor Centre of Excellence, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- Department of Endocrinology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- Department of Clinical Physiology, Nuclear Medicine & PET and Cluster for Molecular Imaging, University of Copenhagen and Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Andreas Kjaer
- ENETS Neuroendocrine Tumor Centre of Excellence, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- Department of Clinical Physiology, Nuclear Medicine & PET and Cluster for Molecular Imaging, University of Copenhagen and Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Seppo W Langer
- ENETS Neuroendocrine Tumor Centre of Excellence, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- Department of Oncology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Ulrich Knigge
- ENETS Neuroendocrine Tumor Centre of Excellence, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- Department of Surgery and Transplantation, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- Department of Endocrinology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
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12
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Feola T, Centello R, Sesti F, Puliani G, Verrico M, Di Vito V, Di Gioia C, Bagni O, Lenzi A, Isidori AM, Giannetta E, Faggiano A. Neuroendocrine Carcinomas with Atypical Proliferation Index and Clinical Behavior: A Systematic Review. Cancers (Basel) 2021; 13:1247. [PMID: 33809007 PMCID: PMC7999788 DOI: 10.3390/cancers13061247] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Revised: 03/01/2021] [Accepted: 03/09/2021] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Highly proliferative (G3) neuroendocrine neoplasms are divided into well differentiated tumors (NETs) and poorly differentiated carcinomas (NECs), based on the morphological appearance. This systematic review aims to evaluate the clinicopathological features and the treatment response of the NEC subgroup with a Ki67 labeling index (LI) < 55%. METHODS A literature search was performed using MEDLINE, Cochrane Library, and Scopus between December 2019 and April 2020, last update in October 2020. We included studies reporting data on the clinicopathological characteristics, survival, and/or therapy efficacy of patients with NECs, in which the Ki67 LI was specified. RESULTS 8 papers were included, on a total of 268 NEC affected patients. NECs with a Ki67 LI < 55% have been reported in patients of both sexes, mainly of sixth decade, pancreatic origin, and large-cell morphology. The prevalent treatment choice was chemotherapy, followed by surgery and, in only one study, peptide receptor radionuclide therapy. The subgroup of patients with NEC with a Ki67 LI < 55% showed longer overall survival and progression free survival and higher response rates than the subgroup of patients with a tumor with higher Ki67 LI (≥55%). CONCLUSIONS NECs are heterogeneous tumors. The subgroup with a Ki67 LI < 55% has a better prognosis and should be treated and monitored differently from NECs with a Ki67 LI ≥ 55%.
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Affiliation(s)
- Tiziana Feola
- Department of Experimental Medicine, “Sapienza” University of Rome, 00161 Rome, Italy; (T.F.); (R.C.); (F.S.); (G.P.); (V.D.V.); (A.L.); (A.M.I.); (E.G.)
- Neuroendocrinology, Neuromed Institute, IRCCS, 86077 Pozzilli (IS), Italy
| | - Roberta Centello
- Department of Experimental Medicine, “Sapienza” University of Rome, 00161 Rome, Italy; (T.F.); (R.C.); (F.S.); (G.P.); (V.D.V.); (A.L.); (A.M.I.); (E.G.)
| | - Franz Sesti
- Department of Experimental Medicine, “Sapienza” University of Rome, 00161 Rome, Italy; (T.F.); (R.C.); (F.S.); (G.P.); (V.D.V.); (A.L.); (A.M.I.); (E.G.)
| | - Giulia Puliani
- Department of Experimental Medicine, “Sapienza” University of Rome, 00161 Rome, Italy; (T.F.); (R.C.); (F.S.); (G.P.); (V.D.V.); (A.L.); (A.M.I.); (E.G.)
- Oncological Endocrinology Unit, Regina Elena National Cancer Institute, IRCCS, 00144 Rome, Italy
| | - Monica Verrico
- Department of Radiological, Oncological and Pathological Sciences, “Sapienza” University of Rome, 00161 Rome, Italy; (M.V.); (C.D.G.)
| | - Valentina Di Vito
- Department of Experimental Medicine, “Sapienza” University of Rome, 00161 Rome, Italy; (T.F.); (R.C.); (F.S.); (G.P.); (V.D.V.); (A.L.); (A.M.I.); (E.G.)
| | - Cira Di Gioia
- Department of Radiological, Oncological and Pathological Sciences, “Sapienza” University of Rome, 00161 Rome, Italy; (M.V.); (C.D.G.)
| | - Oreste Bagni
- Radiology Unit, “Santa Maria Goretti” Hospital, 04100 Latina, Italy;
| | - Andrea Lenzi
- Department of Experimental Medicine, “Sapienza” University of Rome, 00161 Rome, Italy; (T.F.); (R.C.); (F.S.); (G.P.); (V.D.V.); (A.L.); (A.M.I.); (E.G.)
| | - Andrea M. Isidori
- Department of Experimental Medicine, “Sapienza” University of Rome, 00161 Rome, Italy; (T.F.); (R.C.); (F.S.); (G.P.); (V.D.V.); (A.L.); (A.M.I.); (E.G.)
| | - Elisa Giannetta
- Department of Experimental Medicine, “Sapienza” University of Rome, 00161 Rome, Italy; (T.F.); (R.C.); (F.S.); (G.P.); (V.D.V.); (A.L.); (A.M.I.); (E.G.)
| | - Antongiulio Faggiano
- Endocrinology Unit, Department of Clinical and Molecular Medicine, Sant’Andrea Hospital, Sapienza University of Rome, 00189 Rome, Italy
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13
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Zheng-Pywell R, Fang A, AlKashash A, Awad S, Reddy S, Vickers S, Heslin M, Dudeja V, Chen H, Rose JB. Prognostic Impact of Tumor Size on Pancreatic Neuroendocrine Tumor Recurrence May Have Racial Variance. Pancreas 2021; 50:347-352. [PMID: 33835965 PMCID: PMC8041062 DOI: 10.1097/mpa.0000000000001776] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
OBJECTIVE The incidence of pancreatic neuroendocrine tumors (PNETs) has increased over the last decade. Black patients have worse survival outcomes. This study investigates whether oncologic outcomes are racially disparate at a single institution. METHODS Retrospective analysis was performed on 151 patients with resected PNETs between 2010 and 2019. RESULTS More White males and Black females presented with PNETs (P = 0.02). White patients were older (65 years vs 60 years; P = 0.03), more likely to be married (P < 0.01), and had higher median estimated yearly incomes ($28,973 vs $17,767; P < 0.01) than Black patients. Overall and disease-free survival were not different. Black patients had larger median tumor sizes (30 mm vs 23 mm; P = 0.02). Tumor size was predictive of recurrence only for White patients (hazard ratio, 1.02; P = 0.01). Collectively, tumors greater than 20 mm in size were more likely to have recurrence (P = 0.048), but this cutoff was not predictive in either racial cohort independently. CONCLUSIONS Black patients undergoing curative resection of PNETs at our institution presented with larger tumors, but that increased size is not predictive of disease-free survival in this population.
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Affiliation(s)
- Rui Zheng-Pywell
- From the Department of Surgery, University of Alabama at Birmingham, Birmingham, AL
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14
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Borga C, Businello G, Murgioni S, Bergamo F, Martini C, De Carlo E, Trevellin E, Vettor R, Fassan M. Treatment personalization in gastrointestinal neuroendocrine tumors. Curr Treat Options Oncol 2021; 22:29. [PMID: 33641005 DOI: 10.1007/s11864-021-00825-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/18/2021] [Indexed: 12/12/2022]
Abstract
OPINION STATEMENT The clinical scenario of gastroenteropancreatic neuroendocrine neoplasms (GEP-NENs) is continuously changing due to significant improvements in the definition of their molecular landscapes and the introduction of innovative therapeutic approaches. Many efforts are currently employed in the integration of the genetics/epigenetics and clinical information. This is leading to an improvement of tumor classification, prognostic stratification and ameliorating the management of patients based on a personalized approach.
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Affiliation(s)
- Chiara Borga
- Surgical Pathology Unit, Department of Medicine (DIMED), University of Padua, Padua, Italy
| | - Gianluca Businello
- Surgical Pathology Unit, Department of Medicine (DIMED), University of Padua, Padua, Italy
| | - Sabina Murgioni
- Unit of Medical Oncology 1, Veneto Institute of Oncology IOV-IRCCS, Padua, Italy
| | - Francesca Bergamo
- Unit of Medical Oncology 1, Veneto Institute of Oncology IOV-IRCCS, Padua, Italy
| | - Chiara Martini
- Endocrine-Metabolic Unit, Department of Medicine (DIMED), University of Padua, Padua, Italy
| | - Eugenio De Carlo
- Endocrine-Metabolic Unit, Department of Medicine (DIMED), University of Padua, Padua, Italy
| | - Elisabetta Trevellin
- Endocrine-Metabolic Unit, Department of Medicine (DIMED), University of Padua, Padua, Italy
| | - Roberto Vettor
- Endocrine-Metabolic Unit, Department of Medicine (DIMED), University of Padua, Padua, Italy
| | - Matteo Fassan
- Surgical Pathology Unit, Department of Medicine (DIMED), University of Padua, Padua, Italy.
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15
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Update on gastroenteropancreatic neuroendocrine tumors. Dig Liver Dis 2021; 53:171-182. [PMID: 32912771 DOI: 10.1016/j.dld.2020.08.031] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 08/20/2020] [Accepted: 08/21/2020] [Indexed: 02/07/2023]
Abstract
The incidence gastroenteropancreatic neuroendocrine neoplasms (GEP-NENs) has dramatically risen over the last three decades, probably due to the increased detection of asymptomatic lesions. The diagnostic work-up for patients with suspected GEP-NENs is based on conventional imaging, endoscopy, pathology, and functional imaging, including 68Gallium-DOTATATE PET and 18F-FDG PET. The choice of the best treatment strategy should be based on the evaluation of tumor-related features and patient's characteristics. A conservative management, consisting of active surveillance or endoscopic resection, has been advocated for patients with small, incidentally discovered, nonfunctioning tumors without features of aggressiveness. On the other hand, surgery with lymphadenectomy, also with a minimally invasive approach, represents the gold standard for the curative treatment of localized disease. Moreover, surgical resection plays an important role also in the context of a multimodal treatment strategy for patients with advanced GEP-NENs. Finally, a wide range of medical therapies, comprising somatostatin analogues, peptide receptor radionuclide therapy, target therapies and several chemotherapy regimens, can be offered to patients with advanced GEP-NENs not amenable of surgical resection, according to the biological and molecular features of their disease.
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16
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Chen H. From the Editor - in - Chief: Featured papers in the August Issue. Am J Surg 2020; 220:253. [PMID: 32564878 DOI: 10.1016/j.amjsurg.2020.05.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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17
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Rose JB. Is radical ever too radical? Am J Surg 2020; 220:282-283. [DOI: 10.1016/j.amjsurg.2020.05.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 05/05/2020] [Accepted: 05/06/2020] [Indexed: 10/24/2022]
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