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Università Cattolica del Sacro Cuore, Rome, Italy
ENETS Center of Excellence, Neuroendocrine Tumour (NET) Center, Rome, Italy
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ENETS Center of Excellence, Neuroendocrine Tumour (NET) Center, Rome, Italy
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the poorly differentiated lesion, defined as neuroendocrine carcinoma (NEC). (A, B and C) NET G1 displays a trabecular/insular structure, in absence of necrosis, and is composed of epithelial cells with abundant cytoplasm, low degree of atypia, low, if
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-differentiated high-grade neuroendocrine tumors (G3 NET) and poorly differentiated high-grade neuroendocrine carcinomas (NECs). Most available literature does not account for this subcategorization and as a result, much of the management of high-grade NENs is based on
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considers neuroendocrine carcinomas (NECs) as a single category on the basis of a Ki-67 labeling index (LI) >20% ( Rindi et al. 2010 ). It has recently become apparent that the definition of NEC by the 2010 WHO classification includes a spectrum of
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neuroendocrine neoplasms with previous WHO classifications WHO 1980 WHO 2000 WHO 2010 I. Carcinoid 1. Well-differentiated endocrine tumour (WDET) a 1. Neuroendocrine tumour (NET) G1 (carcinoid) G2 a 2. Well-differentiated endocrine carcinoma (WDEC) a 3. Poorly
Department of Cancer Biology, Kimmel Cancer Center, Departments of Urology, Radiation Oncology, Thomas Jefferson University, 233 South 10th Street, BLSB 1008, Philadelphia, Pennsylvania 19107, USA
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Department of Cancer Biology, Kimmel Cancer Center, Departments of Urology, Radiation Oncology, Thomas Jefferson University, 233 South 10th Street, BLSB 1008, Philadelphia, Pennsylvania 19107, USA
Department of Cancer Biology, Kimmel Cancer Center, Departments of Urology, Radiation Oncology, Thomas Jefferson University, 233 South 10th Street, BLSB 1008, Philadelphia, Pennsylvania 19107, USA
Department of Cancer Biology, Kimmel Cancer Center, Departments of Urology, Radiation Oncology, Thomas Jefferson University, 233 South 10th Street, BLSB 1008, Philadelphia, Pennsylvania 19107, USA
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Introduction Prostate cancer is the second most common cancer in men worldwide ( Ferlay et al . 2010 ). With >90% of prostate cancers initially diagnosed as acinar adenocarcinomas ( Fine 2012 , Humphrey 2012 ), neuroendocrine carcinomas of the
Department of Pathology and Cancer Diagnostics, Karolinska University Hospital, Stockholm, Sweden
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Endocrine Oncology Site, Princess Margaret Cancer Centre, Toronto, ON, Canada
Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
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. Frontiers in Endocrinology 9 555. ( https://doi.org/10.3389/fendo.2018.00555 ) Asa SL Mete O 2022 Medullary thyroid carcinoma in the IARC/WHO neuroendocrine schema . Endocrine Pathology 33 346 – 347 . ( https://doi.org/10.1007/s12022-022-09728-y
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classification, delineating G3-NETs as a distinct category from the poorly differentiated neuroendocrine carcinoma (NEC) ( Table 1 ) ( Velayoudom-Cephise et al. 2013 , Heetfeld et al. 2015 , Nagtegaal et al. 2020 , Elvebakken et al. 2021 , Luecke et
Laboratory of Endocrine and Metabolic Research, Istituto Auxologico Italiano IRCCS, Milan, Italy
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Introduction Medullary thyroid carcinoma (MTC) is a neuroendocrine tumour originating from parafollicular C cells. At the end of 60s, after the discovery that MTC represents a unique thyroid cancer, it was recognised that the tumour occurred
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recognized based on the morphology and grade of differentiation: neuroendocrine tumors (NETs, also termed as carcinoid tumors in the thoracic location) and neuroendocrine carcinomas (NECs). In this binary framework, NETs correspond to well
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et al. 1998 ), gastrointestinal neuroendocrine tumors (GI-NETs) ( Zhao et al. 2000 ), bronchial neuroendocrine tumors (B-NETs) ( Zhao et al. 2000 ) and PGLs ( Edstrom et al. 2000 ) and 5% of papillary thyroid carcinomas (PTC) ( Singh et al