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Díaz-López S, Jiménez-Castro J, Robles-Barraza CE, Ayala-de Miguel C, Chaves-Conde M. Mixed neuroendocrine non-neuroendocrine neoplasms in gastroenteropancreatic tract. World J Gastrointest Oncol 2024; 16:1166-1179. [PMID: 38660639 PMCID: PMC11037054 DOI: 10.4251/wjgo.v16.i4.1166] [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: 12/06/2023] [Revised: 01/17/2024] [Accepted: 02/18/2024] [Indexed: 04/10/2024] Open
Abstract
Mixed neuroendocrine non-neuroendocrine neoplasms (MiNENs) are a heterogeneous group of malignant neoplasms that can settle in the gastroenteropancreatic tract. They are composed of a neuroendocrine (NE) and a non-NE component in at least 30% of each tumour. The non-NE component can include different histological combinations of glandular, squamous, mucinous and sarcomatoid phenotypes, and one or both of the components can be low-or high grade malignant. Recent changes in the nomenclature of these neoplasms might lead to great deal of confusion, and the lack of specific clinical trials is the main reason why their management is difficult. The review aims to clarify the definition of MiNEN and analyze available evidence about their diagnosis and treatment options according to their location and extension through careful analysis of the available data. It would be important to reach a general consensus on their diagnosis in order to construct a classification that remains stable over time and facilitates the design of clinical trials that, due to their low incidence, will require long recruitment periods.
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Affiliation(s)
- Sebastián Díaz-López
- Medical Oncology Department, Hospital Universitario Valme, Seville 41014, Andalucía, Spain
| | | | | | - Carlos Ayala-de Miguel
- Medical Oncology Department, Hospital Universitario Valme, Seville 41014, Andalucía, Spain
| | - Manuel Chaves-Conde
- Medical Oncology Department, Hospital Universitario Valme, Seville 41014, Andalucía, Spain
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Liu L, Li Q, Liu W, Qiu Z, Wu Z, Yu D, Deng W. Gastric mixed neuroendocrine non-neuroendocrine neoplasms. Front Oncol 2024; 14:1335760. [PMID: 38655135 PMCID: PMC11036886 DOI: 10.3389/fonc.2024.1335760] [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: 12/05/2023] [Accepted: 03/26/2024] [Indexed: 04/26/2024] Open
Abstract
The uncommon tumour known as gastric mixed neuroendocrine-non-neuroendocrine neoplasms (G-MiNENs) is made up of parts of neuroendocrine carcinoma and adenocarcinoma. The biological and clinical features are different from those of gastric adenocarcinoma. Their pathophysiology, diagnostic standards, and clinical behaviour have all been the subject of lengthy debates, and their nomenclature has undergone multiple changes. Its emergence has created new challenges in the classification and diagnosis of gastric tumours. This review will update information on the topic, covering molecular aspects, diagnostic criteria, treatment, and prognostic factor discovery. It will also provide a historical context that will aid in understanding the evolution of the idea and nomenclature of mixed gastric tumours. Additionally, it will provide the reader a thorough understanding of this difficult topic of cancer that is applicable to real-world situations.
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Affiliation(s)
- Li Liu
- Department of General Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Qian Li
- Department of Ultrasound Imaging, Hubei Cancer Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Wenxuan Liu
- Department of General Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Zhendong Qiu
- Department of General Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Zhongkai Wu
- Department of General Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Danli Yu
- Department of Ultrasound Imaging, Hubei Cancer Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Wenhong Deng
- Department of General Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
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Fløe LE, Aggerholm-Pedersen N, Tabaksblat EM. Treatment of poorly differentiated neuroendocrine carcinomas of rectum and anus with chemoradiotherapy: a single-centre evaluation. J Cancer Res Clin Oncol 2024; 150:114. [PMID: 38448660 PMCID: PMC10917866 DOI: 10.1007/s00432-024-05635-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Accepted: 01/29/2024] [Indexed: 03/08/2024]
Abstract
PURPOSE Poorly differentiated neuroendocrine carcinoma (PDNEC) of the rectum and anus is a rare disease exhibiting aggressive biological behaviour, even if diagnosed early. Currently, there are no agreed standard treatment approaches and management of locally advanced (LA) and metastatic PDNEC usually follows treatments used in pulmonary neuroendocrine carcinomas because of the similarities with small cell lung cancer. The role of surgery in PDNEC is still debated and the benefit of chemoradiotherapy (CRT) is unknown. This report summarises the experiences of CRT application in anorectal PDNEC in a single Danish institution. METHODS All patients with PDNEC treated with concomitant CRT between May 2019 and January 2021 at a University hospital in Denmark were evaluated. Demographics, treatment and survival outcomes were collected and analysed. RESULTS Six patients were identified. Five patients received radiotherapy with 50.4 Gy/28 fractions, and four were eligible for curative resection after the CRT. Distant metastasis was observed in four patients at diagnosis. Two patients with synchronous liver metastases were treated with RFA, and one received a liver resection. The treatment was well tolerated with limited side effects. The median follow-up time was 17 months (range 10-36 months), and the median duration of response was 11.2 months (range 8.1 to 24.2 months). One patient achieved a complete response. CONCLUSION A multimodal treatment approach with CRT in advanced stages of PDNEC in a highly selected patient group is well tolerated and with a high chance of achieving local control and, combined with surgery, even complete response in a single case.
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Pang S, Song J, Zhang K, Wang J, Zhao H, Wang Y, Li P, Zong Y, Wu Y. Case report: Coexistence of sigmoid tumor with unusual pathological features and multiple colorectal neuroendocrine tumors with lymph node metastases. Front Oncol 2023; 13:1073234. [PMID: 36994194 PMCID: PMC10040595 DOI: 10.3389/fonc.2023.1073234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Accepted: 02/20/2023] [Indexed: 03/18/2023] Open
Abstract
The coexistence of adenocarcinoma and neuroendocrine neoplasm (NEN) in the same tumor is rare. What is rarer is that the neuroendocrine component is a well-differentiated neuroendocrine tumor (NET) Grade (G) 1. Most colorectal NETs are single, but multiple neuroendocrine tumors (M-NETs) are rare. Well-differentiated NETs rarely metastasize. Here, we present a unique case of a synchronous sigmoid tumor and multiple colorectal NETs with lymph node metastases. The sigmoid tumor consisted of adenocarcinoma and NET G1. The metastatic component was NET G1. A 64-year-old man underwent a colonoscopy for persistent changes in bowel habits and positive fecal occult blood for 1 year. An ulcerative lesion, which was diagnosed as colon cancer, was seen in the sigmoid colon. In addition, scattered lesions could be seen in the colon and rectum. Surgical resection was performed. Pathological findings suggested that the ulcerative lesion was composed of 80% adenocarcinoma and 20% neuroendocrine component (NET G1), while the remaining lesions were consistent with NET G1. At the same time, 11 lymph nodes around the resected intestinal segment were invaded by NET G1. The prognosis of the patient was good. After 13 months of follow-up, no recurrence and no metastasis were found. We hope to provide a reference and improve our understanding of the clinicopathological features and biological behavior of these unique tumors. We also aim to emphasize the importance of radical surgery and individualized treatment.
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Affiliation(s)
- Shu Pang
- Department of General Practice, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Jiugang Song
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Kun Zhang
- Department of Pathology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Jia Wang
- Department of Ultrasonography, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Haiying Zhao
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Yongjun Wang
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Peng Li
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Ye Zong
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
- *Correspondence: Ye Zong, ; Yongdong Wu,
| | - Yongdong Wu
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
- *Correspondence: Ye Zong, ; Yongdong Wu,
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Lee SL, Ng CY, Gew LT, Sidhu J, Baharom ZF. Mixed Neuroendocrine – Nonneuroendocrine Neoplasm Arising in Barrett\'s Esophagus. Euroasian J Hepatogastroenterol 2022; 12:57-59. [PMID: 35990865 PMCID: PMC9357519 DOI: 10.5005/jp-journals-10018-1356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Barrett's esophagus, which results from chronic gastroesophageal reflux disease, is a known precursor to dysplasia and ultimately esophageal adenocarcinoma. Mixed neuroendocrine – nonneuroendocrine neoplasm (MiNEN) is a rare and heterogenous group of neoplasm with aggressive clinical behavior in general. There have been rare reports of MiNEN arising in Barrett's esophagus, and its pathogenesis remains unclear. Surgical resection with lymph node dissection remains the most effective treatment of MiNEN of the esophagus to date, although the evidence on its optimal treatment is scant.
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Affiliation(s)
- Soon Liang Lee
- Department of Medicine, Gastroenterology and Hepatology Unit, Kuala Lumpur General Hospital, Kuala Lumpur, Wilayah Persekutuan, Malaysia
- Soon Liang Lee, Department of Medicine, Gastroenterology and Hepatology Unit, Kuala Lumpur General Hospital, Kuala Lumpur, Wilayah Persekutuan, Malaysia, e-mail:
| | - Chiun Yann Ng
- Department of Medicine, Gastroenterology and Hepatology Unit, Kuala Lumpur General Hospital, Kuala Lumpur, Wilayah Persekutuan, Malaysia
| | - Lai Teck Gew
- Department of Medicine, Gastroenterology and Hepatology Unit, Kuala Lumpur General Hospital, Kuala Lumpur, Wilayah Persekutuan, Malaysia
| | - Jasminder Sidhu
- Department of Medicine, Gastroenterology and Hepatology Unit, Kuala Lumpur General Hospital, Kuala Lumpur, Wilayah Persekutuan, Malaysia
| | - Zuliatul F Baharom
- Department of Pathology, Kuala Lumpur General Hospital, Kuala Lumpur, Wilayah Persekutuan, Malaysia
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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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Jacob A, Raj R, Allison DB, Soares HP, Chauhan A. An Update on the Management of Mixed Neuroendocrine-Non-neuroendocrine Neoplasms (MiNEN). Curr Treat Options Oncol 2022; 23:721-735. [DOI: 10.1007/s11864-022-00968-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/14/2022] [Indexed: 12/16/2022]
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Elpek GO. Mixed neuroendocrine–nonneuroendocrine neoplasms of the gastrointestinal system: An update. World J Gastroenterol 2022; 28:794-810. [PMID: 35317101 PMCID: PMC8900574 DOI: 10.3748/wjg.v28.i8.794] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 12/15/2021] [Accepted: 01/22/2022] [Indexed: 02/06/2023] Open
Abstract
Mixed neuroendocrine-nonneuroendocrine neoplasms (MiNENs) of the digestive tract are a rare heterogeneous group of tumors that present many challenges in terms of diagnosis and treatment. Over the years, the diagnostic criteria, classification, and clinical behavior of these tumors have been the subjects of ongoing debate, and the various changes in their nomenclature have strengthened the challenges associated with MiNENs. This review is performed to provide an understanding of the key factors involved in the evolution of the designation of these tumors as MiNEN, highlight the current diagnostic criteria, summarize the latest data on pathogenesis and provide information on available treatments. Moreover, this work seeks to increase the awareness about these rare neoplasms by presenting the clinicopathological features and prognostic factors that play important roles in their behavior and discussing their different regions of origin in the gastrointestinal system (GIS). Currently, the MiNEN category also includes tumors in the GIS with a nonneuroendocrine component and epithelial tumors other than adenocarcinoma, depending on the organ of origin. Diagnosis is based on the presence of both morphological components in more than 30% of the tumor. However, this value needs to be reconfirmed with further studies and may be a limiting factor in the diagnosis of MiNEN by biopsy. Furthermore, available clinicopathological data suggest that the inclusion of amphicrine tumors in the definition of MiNEN is not supportive and warrants further investigation. The diagnosis of these tumors is not solely based on immunohistochemical findings. They are not hybrid tumors and both components can act independently; thus, careful grading of each component separately is required. In addition to parameters such as the metastatic state of the tumor at the time of diagnosis and the feasibility of surgical resection, the aggressive potential of both components has paramount importance in the choice of treatment. Regardless of the organ of origin within the GIS, almost MiNENs are tumors with poor prognosis and are frequently encountered in the elderly and men. They are most frequently reported in the colorectum, where data from molecular studies indicate a monoclonal origin; however, further studies are required to provide additional support for this origin.
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