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Pancreatic Neuroendocrine tumors and carcinomas (pNET) see the last year their incidence and prevalence going up. On the basis of their grade of differentiation and proliferation ratio measured Ki67 staining, there are divided into 3 grade groups : Grade 1 with Ki67 between 1 and 3%, Grade 2 between 3 and 20% and well-differentiated neuroendocrine grade tumors 3 with KI67 greater than 20%, so undifferentiated carcinomas.
pNET is a heterogenous group of tumors with variable prognosis. The aim of this study is to identify the prognostic factors in this population, as well the place of neutrophil-to-lymphocyte ratio as a prognostic marker. The primary endpoint is the description of clinic and pathological parameters of patients from Alsace. The secondary endpoints are the identification of prognostic factors in this population
Pancreatic Neuroendocrine Tumor
Service D'Hematologie Et D'Oncologie
University Hospital, Strasbourg, France
Published on BioPortfolio: 2019-10-28T13:57:22-0400
Investigator determined the factor of surgery associated with the survival of pancreatic neuroendocrine tumor.
The aim of this study is to quantify inter-observer variability in delineating pancreatic neuroendocrine neoplasm (PanNEN) on Computerized Tomography (CT) images and its impact on radiomic...
Neuroendocrine tumors (NETs) and carcinomas account for 10-15 % of all pancreatic incidentalomas. The management of pancreatic NETs depends on tumor stage and on presence or not of hormona...
Observational Study In Real Life Settings Of The Systemic Treatment Of Well Differentiated, Unresectable Or Metastatic, Progressive Pancreatic Neuroendocrine Tumors (pNET): A Study Of Morbidity And Mortality At 2 Years
A descriptive, prospective (partly retrospective), multisite, observational study conducted in France in adult patients treated for a well differentiated, unresectable or metastatic, pancr...
This randomized phase II trial studies how well everolimus and octreotide acetate with or without bevacizumab works in treating patients with pancreatic neuroendocrine tumors that cannot b...
According to the 2017 World Health Organization classification, pancreatic neuroendocrine neoplasms (PanNENs) include a new category of pancreatic neuroendocrine tumor, grade 3, which is often difficu...
Understanding the effect of lymph node metastasis (LNM) on prognosis in pancreatic neuroendocrine neoplasm is helpful for surgery and follow-up. In this study, we investigated the significance of LNM ...
Gastric mixed neuroendocrine-non-neuroendocrine neoplasms (MiNENs) are infrequently encountered in routine practice. Some gastric neuroendocrine carcinomas (NECs) have a variety of differentiation pat...
A 61-year-old man, with a history of prior clear cell renal cell carcinoma in remission, was referred to Ga-DOTATATE PET/CT for the further evaluation of pancreatic tail mass. Ga-DOTATATE PET/CT showe...
The optimal lymph node dissection range in patients with non-functioning pancreatic neuroendocrine tumors is not yet clear. In this study, we investigated the site and frequency of lymph node metastas...
A group of carcinomas which share a characteristic morphology, often being composed of clusters and trabecular sheets of round "blue cells", granular chromatin, and an attenuated rim of poorly demarcated cytoplasm. Neuroendocrine tumors include carcinoids, small ("oat") cell carcinomas, medullary carcinoma of the thyroid, Merkel cell tumor, cutaneous neuroendocrine carcinoma, pancreatic islet cell tumors, and pheochromocytoma. Neurosecretory granules are found within the tumor cells. (Segen, Dictionary of Modern Medicine, 1992)
Tumors whose cells possess secretory granules and originate from the neuroectoderm, i.e., the cells of the ectoblast or epiblast that program the neuroendocrine system. Common properties across most neuroendocrine tumors include ectopic hormone production (often via APUD CELLS), the presence of tumor-associated antigens, and isozyme composition.
A benign tumor of the pancreatic ISLET CELLS. Usually it involves the INSULIN-producing PANCREATIC BETA CELLS, as in INSULINOMA, resulting in HYPERINSULINISM.
A 38-kDa integral membrane glycoprotein of the presynaptic vesicles in neuron and neuroendocrine cells. It is expressed by a variety of normal and neoplastic neuroendocrine cells and is therefore used as an immunocytochemical marker for neuroendocrine differentiation in various tumors. In ALZHEIMER DISEASE and other dementing disorders, there is an important synapse loss due in part to a decrease of synaptophysin in the presynaptic vesicles.
A 36-amino acid pancreatic hormone that is secreted mainly by endocrine cells found at the periphery of the ISLETS OF LANGERHANS and adjacent to cells containing SOMATOSTATIN and GLUCAGON. Pancreatic polypeptide (PP), when administered peripherally, can suppress gastric secretion, gastric emptying, pancreatic enzyme secretion, and appetite. A lack of pancreatic polypeptide (PP) has been associated with OBESITY in rats and mice.
Pancreatitis Acute pancreatitis is inflammation of the pancreas caused by the release of activated pancreatic enzymes. Common triggers are biliary tract disease and chronic heavy alcohol intake. Diagnosis is based on clinical presentation...
The pancreas secretes a number of important hormones into the digestive tract and the blood stream. Cancers are most commonly exocrine than endocrine (neuroendocrine) tumors. Functional tumors secrete hormones; Insulinoma, Gastrinoma, Somatostatinoma, VI...