Abstract library

2229 results for "digestive neuroendocrine tumors".
#1675 Abdominal Obesity, Fasting Glucose and Metabolic Syndrome Are Risk Factors for Well Differentiated Digestive Neuroendocrine Tumors
Introduction: Digestive NETs(DNETs)`s incidence has increased last 40 years. Visceral obesity and metabolic syndrome (MetSyn) were recently reported to be associated with several cancers, although not so far with DNET.
Conference: 14th Annual ENETS conference 2017 (2017)
Category: Epidemiology/Natural history/Prognosis - Descriptive epidemiology
Presenting Author: Dr. Ana Paula Santos
#1124 Correlation Between the 18F-FDG Uptake and Pathological Data in Well-Differentiated Digestive and Pulmonary Neuroendocrine Tumors (NET)
Introduction: The 18F-FDG uptake assessed by PET/CT is correlated to prognosis in most tumors.
Conference: 12th Annual ENETS Conference 2015 (2015)
Category: Pathology, grading, staging
Presenting Author: Margot Bucau
#2729 Survival of Patients with Gastroenteropancreatic Neuroendocrine Tumors (GEP-NETs) in a Single Institute in North Africa over the Last 16 Years
Introduction: Because of the low incidence, nonspecific symptoms at presentation, lack of awareness, and non-uniform classifications, gastroenteropancreatic neuroendocrine tumors (GEP-NETs) remains a poorly understood disease, and delayed diagnosis is common among patients with GEP-NETs.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Epidemiology/Natural history/Prognosis - Registries, nationwide and regional surveys
Presenting Author: Imen Harhira
#2726 Clinicopathological Characterization of Gastroenteropancreatic Neuroendocrine Tumors in a Single Institute of North Africa: A Retrospective Study of 80 Cases
Introduction: The management of gastroenteropancreatic neuroendocrine tumors (GEP-NETs) is based on a variety of factors including stage, anatomic location, and the presence and type of symptoms.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Epidemiology/Natural history/Prognosis - Registries, nationwide and regional surveys
Presenting Author: Imen Harhira
#2816 Germline Variants in Cancer Predisposing Genes in Young Adults with Neuroendocrine Tumors
Introduction: Advances in genomics have enabled the recognition of new cancer predisposing genes (CPG). There are few studies of CPG in neuroendocrine tumors (NET).
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Basic Science - Genetics, epigenetics, miRNAs, Omics
Presenting Author: Prof Rachel Riechelmann
#11 Plasma chromogranin - A response to octreotide test: Prognostic value for clinical outcome in endocrine digestive tumors
Introduction: Gastroenteropancreatic neuroendocrine tumors (GEP-NETs) expressing somatostatin receptors may be treated with somatostatin analogues (SSAs). Selection criteria are a positive Octreoscan® or a >50% hormone level decrease after octreotide s.c. injection (octreotide test) (OT). Plasma chromogranin A (CgA) is the best general GEP-NET marker, but data on CgA response to OT are scant.
Conference: 7th Annual ENETS Conference (2010)
Category: Clinical
Presenting Author: MD, PhD Sara Massironi
#2683 Clinicopathological Features and Prognostic Analysis of 227 Cases with Well-Differentiated Gastric Neuroendocrine Tumors
Introduction: Gastric neuroendocrine neoplasms (g-NENs) are a group of rare tumors with a strong heterogeneity, subdivided as well-differentiated neuroendocrine tumors (NETs, type 1-3 g-NETs) and poorly-differentiated neuroendocrine carcinoma(NECs). WHO classification(2019) for digestive system tumours has carried out a new classification and grading criteria for NENs of the gastrointestinal tract recently, there is very few relevant clinical data based on this new classification, especially for gastric NETs(g-NETs).
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Epidemiology/Natural history/Prognosis - Registries, nationwide and regional surveys
Presenting Author: Yuanliang Li
Authors: Li Y, Tan H, Jie C, Jie L, ...
#1387 FOLFOX in Neuroendocrine Tumors
Introduction: Favorable toxicity profile and significant antitumor activity of FU-oxaliplatin in several malignancies led us to evaluate FOLFOX in advanced neuroendocrine carcinomas (NETs).
Conference: 13th Annual ENETS conference 2016 (2016)
Category: Medical treatment - Chemotherapy
Presenting Author: Marjorie Faure
Authors: Faure M, Raoul J L, Autret A, Mineur L, ...
#18 Long-acting release octreotide induce complete response in type 1 gastric carcinoid tumors
Introduction: Gastric endocrine tumors (GET) are increasingly recognized due to expanding indications of upper gastrointestinal endoscopy. Often silent and benign, GET may also be aggressive when sporadic and may sometimes mimic the course of gastric adenocarcinoma. Current incidence of GETs is estimated at around 8% of digestive endocrine tumors. Yearly age-adjusted incidence is around 0.2 per population of 100,000. Gastric carcinoids (ECLomas) develop from gastric enterochromaffin-like cells (ECL cells) in response to chronically elevated gastrin. Type 1 tumors (ECLomas in the course of atrophic gastritis) may occur in conditions of achlorhydria secondary to auto-immune atrophic fundic gastritis. It occurs mostly in women and they are non-functioning tumors, typically found during upper GI endoscopy performed for dyspepsia. ECLomas present frequently as multiple polyps, usually < 1 cm in diameter in the gastric fundus. Type 1 tumors are almost exclusively benign lesions with little risk of deep invasion of the gastric parietal wall. The neoplastic ECL cells become progressively dedifferentiated with an increasing number of Ki-67 immunoreactive (IR) cell nuclei. In addition, there is a substantial decrease in argynophil and IR NE cells that can be visualized by conventional methods. ECLomas secondary to hypergastrinemia should be closely followed for signs of clinical and histopathological tumor progression. Such ECLomas deserve early, active, radical surgical treatment.
Traditionally, gastric carcinoid type 1 (GCA1s) are endoscopically or surgically removed, depending on the number, appearance and size of the tumors. Antrectomy, with surgical excision of the majority of the G cells, is thought to facilitate regression of these tumors by removing the source of excessive gastrin secretion; however, the long-term benefits of antrectomy still remain uncertain. Although proton pump inhibitors are effective in reducing hypergastrinemia-induced gastric acid hypersecretion in GCA2, they do not affect ECL-cell hyperplasia, and therefore their role in GCA1 is limited. Moreover, in selected cases, significant reduction of hypergastrinemia does not prevent development of ECL carcinoid, suggesting that, in addition to hypergastrinemia, other pathogenic or genetic factors may be involved. Treatment with somatostatin analogues (SSA) might impede ECL-cell hyperplasia by suppressing gastrin secretion and/or by a direct anti-proliferative effect on ECL cells. Treatment with SSAs in GCA1 leads to a substantial tumor load reduction, with a concomitant decrease of serum gastrin levels. Published data indicate an important anti-proliferative effect of SSA on ECL cells, providing clinical benefit and obviating, at least temporarily, the need for invasive therapies for GCA1. Morphometric studies demonstrated that, while antrectomy specifically decreased the volume of ECL cells versus the total volume of endocrine cells, octreotide reduces the overall endocrine cell volume. Although the number of treated patients is small, it has been suggested that SSA may exert important anti-proliferative effects either directly, by inhibiting ECL-cells proliferation, or indirectly through suppression of gastrin hypersecretion.
Conference: 7th Annual ENETS Conference (2010)
Category: Clinical
Presenting Author: MD Ricardo Caponero
#297 Hepatic Arterial Embolization v. Chemoembolization in Patients with Liver Metastases of Digestive Neuroendocrine Tumors
Introduction: Promising results have been reported using hepatic arterial chemoembolization (CE) or embolization (E) alone in patients with liver metastases of DET, but these modalities have not been compared.
Conference: 8th Annual ENETS Conference (2011)
Category: Clinical
Presenting Author: Pr Philippe Ruszniewski