Neuroendocrine Neoplasms of the Gastrointestinal Tract
نویسندگان
چکیده
منابع مشابه
Neuroendocrine 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 کاملHistopathology 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 Tumors of the Gastrointestinal Tract.
Gastrointestinal neuroendocrine tumours are classified as functioning or non-functioning according to the presence or absence of a clinically evident hypersecretion syndrome. In foregut tumours the presence of autonomous hormone secretion and the respective hypersecretion syndrome indicate functionality. Abdominal ultrasound (US), computed tomography (CT), magnetic resonance tomography (MRT) an...
متن کاملSurgical management of neuroendocrine tumors of the gastrointestinal tract.
Neuroendocrine tumors of the pancreas (islet cell tumors) and of the luminal gastrointestinal tract (carcinoids) are a heterogeneous group of epithelial neoplasms that share certain common characteristics. First, they are similar histologically and are difficult to distinguish under light microscopy. Second, they can be associated with hypersecretory syndromes. Third, they are generally slow-gr...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Deutsches Aerzteblatt Online
سال: 2011
ISSN: 1866-0452
DOI: 10.3238/arztebl.2011.0305