Histopathology of gastrointestinal neuroendocrine neoplasms
نویسندگان
چکیده
منابع مشابه
Histopathology of gastrointestinal neuroendocrine neoplasms
Gastrointestinal neuroendocrine neoplasms (GI-NENs) arise from neuroendocrine cells distributed mainly in the mucosa and submucosa of the gastrointestinal tract. In 2010, the World Health Organization (WHO) classification of NENs of the digestive system was changed, categorizing these tumors as grade 1 neuroendocrine tumor (NET), grade-2NET, neuroendocrine carcinoma (large- or small-cell type),...
متن کاملNeuroendocrine neoplasms of the gastrointestinal tract.
BACKGROUND Gastroenteropancreatic neuroendocrine neoplasms (GEP-NENs) are complex tumors whose incidence is rising and whose treatment requires precise classification and risk stratification. METHOD Selective review of the relevant literature, including recently published guidelines. RESULTS GEP-NENs are initially classified by their degree of histological differentiation and their graded c...
متن کاملDiagnosis and therapy of neuroendocrine neoplasms of the gastrointestinal tract
A neuroendocrine neoplasm (nen) is a tumor that originates in neuroendocrine cells capable of producing peptides or amines. neuroendocrine neoplasms of the digestive system are also referred to as gastroenteropancreatic neuroendocrine neoplasms (GeP nen) and constitute a heterogeneous group of growths originating from at least 15 types of specialized cells spread throughout the stomach, small i...
متن کاملEndoscopic Biopsy in Gastrointestinal Neuroendocrine Neoplasms: A Retrospective Study
BACKGROUND Gastrointestinal neuroendocrine neoplasms (GI-NENs) are often located in the deep mucosa or submucosa, and the efficacy of endoscopic biopsy for diagnosis and treatment of GI-NENs is not fully understood. OBJECTIVE The current study analyzed GI-NENs, especially those diagnosed pathologically and resected endoscopically, and focused on the biopsy and cold biopsy forceps polypectomy ...
متن کاملDigestive System Mixed Neuroendocrine-Non-Neuroendocrine Neoplasms.
Mixed neuroendocrine-non-neuroendocrine neoplasms (MiNEN) are a heterogeneous subgroup of rare neoplasms that represent about a third of all poorly differentiated neuroendocrine carcinomas (PDNEC). MiNEN combine a neuroendocrine component, usually a PDNEC, and a non-neuroendocrine component, generally an adenocarcinoma, both accounting for at least 30% of the neoplasm. MiNEN are classified as h...
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ژورنال
عنوان ژورنال: Frontiers in Oncology
سال: 2013
ISSN: 2234-943X
DOI: 10.3389/fonc.2013.00002