Abstract library

257 results for "gastroenteropancreatic".
#2214 The Trend of Using CT to Diagnose the Gastroenteropancreatic Neuroendocrine Neoplasms: Results of a Nation-Wide Retrospective Epidemiology Study in China
Introduction: Representative data on the gastroenteropancreatic neuroendocrine neoplasms (GEP-NENs) in Asian patients is rare, especially in China.
Conference: 15th Annual ENETS conference (2018)
Category: Epidemiology/Natural history/Prognosis- Registries, nationwide and regional surveys
Presenting Author: professor Fan Jinhu
Authors: Fan J, Yu P, Chi Y, Shi S, ...
#87 Alterations of E-cadherin, beta-catenin and caveolin-1 expression in gastroenteropancreatic neuroendocrine tumors
Introduction: Gastroenteropancreatic neuroendocrine tumors (GEP NETs) comprise a heterogeneous group of neoplasm with different histological patterns and biological behavior. Only limited information is available on immunohistochemical prognostic factors of disease. Alterations in the cell-cell adhesion system are closely associated with cell invasion and metastasis in many malignancies, including those of endocrine origin. Abnormal expression of E-cadherin and beta-catenin has been reported to play an important role in these processes. Caveolin-1 has recently been identified as a tumor metastasis modifier factor, which might increase the cell metastasis potential through the interaction with E-cadherin. However, the role of caveolin-1 in GEP NETs cell invasion remains unknown.
Conference: 7th Annual ENETS Conference (2010)
Category: Clinical
Presenting Author: Vera V Delektorskaya
Authors: Delektorskaya V, Chemeris G, ...
#305 Risk Stratification Using Octreotide Test for Patients with Gastroenteropancreatic Neuroendocrine Tumors: Results of Prospective Validation of the Test
Introduction: We recently demonstrated that a plasma CgA decrement >30% after octreotide s.c. injection is a simple criterion for treatment with Somatostatin analogues (SSA) of gastroenteropancreatic endocrine tumors.
Conference: 8th Annual ENETS Conference (2011)
Category: Clinical
Presenting Author: Sara Massironi
#67 Interest of combined chromogranin A and pancreatic polypeptide for diagnosis and follow-up of gastroenteropancreatic endocrine carcinoma
Introduction: Assessment of tumor burden changes is essential for the management of well-differentiated gastroenteropancreatic neuroendocrine carcinoma (GEPNET). Chromogranin A (CgA) is the principal tumor marker for such tumors; however, its use to evaluate morphological tumor progression is not validated. Combined CgA and pancreatic polypeptide (PP) may increase sensitivity in the diagnosis of GEP-NET.
Conference: 7th Annual ENETS Conference (2010)
Category: Basic
Presenting Author: Dr Thomas WALTER
#81 Gastroenteropancreatic neuroendocrine tumors (GEP-NETs): our experience in a multidisciplinary team in a university hospital
Introduction: Gastroenteropancreatic neuroendocrine tumors (GEP-NETs) have a low incidence and prevalence representing < 2% of all gastrointestinal tumors with a heterogeneous biological behavior and an often complex management.
Conference: 7th Annual ENETS Conference (2010)
Category: Clinical
Presenting Author: Dr Jose Manuel Cabezas-Agricola
#106 Gastroenteropancreatic neuroendocrine tumors: single institution clinicopathological study
Introduction: Neuroendocrine cells are widely distributed throughout the body, and neoplasms from these dispersed cells can arise at many sites. They are distinguished into two broad categories: 1) Tumors identified as small cell lung carcinomas with biology and natural history of a high-grade malignancy and characteristics of small cell undifferentiated or anaplastic appearance by light microscopy. The WHO categorizes these tumors as poorly-differentiated neuroendocrine carcinomas; 2) Well-defined neuroendocrine tumors (NETs) with variable, but most lyindolent biologic behavior and characteristic well-differentiated histologic features. The majority arise in the gastrointestinal tract and collectively they are referred as gastroenteropancreatic neuroendocrine tumors (GEP/NETs). They include carcinoid tumors, pancreatic islet cell tumors (gastrinoma, insulinoma, glucagonoma, VIPoma, somatostatinoma), paragangliomas, pheochromocytomas, and medullary thyroid carcinomas. The WHO classifies the GEP/NETs as well-differentiated NETs (carcinoid tumors) if they are noninvasive and have benign behavior or uncertain malignant potential. In contrast, GEP/NETs with characteristics of low-grade malignancy with invasion of the muscularis propria or beyond, or metastases, are characterized as well-differentiated neuroendocrine carcinomas (malignant carcinoids). Pancreatic islet cell tumors, whether functioning or not, are classified as well-differentiated NETs or well-differentiated neuroendocrine carcinomas, due to the (depending on) histologic characteristics. The WHO classification for gastroenteropancreatic NETs based on stage (ie size and presence of metastases) and grade (mitotic rate, perineural and lymphovascular invasion, Ki-67 proliferative index) categorizes them as well-differentiated NETs, e.g., carcinoid tumors, or as well-differentiated neuroendocrine carcinomas.
Conference: 7th Annual ENETS Conference (2010)
Category: Clinical
Presenting Author: Dr Michael M. Vaslamatzis
#183 Immunhistochemical Expression of Somatostatin Receptors in Gastroenteropancreatic Neuroendocrine Tumors Using IRS- and Her2-scoring Scheme
Introduction: Gastroenteropancreatic neuroendocrine tumors (GEP-NET) are known for an overexpression of somatostatin receptors (SSTR). This finding has already gained importance in diagnostics and therapy of NET.
Conference: 8th Annual ENETS Conference (2011)
Category: Clinical
Presenting Author: Luisa Peter
Authors: Peter L, Kaemmerer D, Lupp A, Saenger J, ...
#458 Octreotide Long-Acting ReleaseTherapy for Patients with Functional and Metastatic Gastroenteropancreatic Neuroendocrine Tumors: A Retrospective Analysis in Chang-Gung Memorial Hospital
Introduction: Reports of octreotide therapy for symptomatic control in patients with functioning gastroenteropancreatic neuroendocrine tumors (GEP-NETs) in Asia are lacking.
Conference: 9th Annual ENETS Conference (2012)
Category: Clinical
Presenting Author: Dr. Chia-Hsun Hsieh
#832 The Role of Plasma Chromogranin A as Assessment of Treatment Response in Grade 1-3 Non-Functioning Gastroenteropancreatic (GEP) Neuroendocrine Tumors
Introduction: Chromogranin A (CgA) is considered to be of value not only in diagnosis but also in monitoring the disease response to treatment. However, only a few studies have been published on this issue.
Conference: 11th Annual ENETS Conference (2014)
Category: Medical treatment - Chemotherapy
Presenting Author: Professor Young Park
Authors: Park Y, Kim S, Lee J, Park S, ...
#873 The Analysis of Immunohistochemistry Staining, Neuronspecific Enolase (NSE) Level and Somatostatin Receptor Scintigraphy of Gastroenteropancreatic Neuroendocrine Neoplasm Cases
Introduction: 99mTc-HYNIC-TYR3-OCTREOTIDE somatostatin receptor (SSR) scintigraphy has been used to diagnose gastroenteropancreatic neuroendocrine neoplasms (GEP-NEN).
Conference: 11th Annual ENETS Conference (2014)
Category: Imaging (radiology, nuclear medicine, endoscopy)
Presenting Author: Jiangyuan Yu
Authors: Yu J, Li J, Yang Z, ...