Abstract Library

#4234 Association of long-term PPI use with low-risk gastric neuroendocrine tumor

Introduction: Gastric neuroendocrine tumors are rare neoplasms, comprising approximately 2% of all gastric tumors, and develop from enterochromaffin-like (ECL) cells in the gastric mucosa. Type I and II develop due to hypergastrinemia and ECL cell hyperplasia; type III typically occurs sporadically, tend to be more aggressive, present metastatically in > 50% of cases, have normal fasting gastrin levels, and vary histopathologically from well- to poorly differentiated.

Conference:

Presenting Author: Al-Toubah T

Authors: Al-Toubah T, Pelle E, Haider M, Strosberg J,

Keywords: gastric, ppi, neuroendocrine, type 3 gastric net,

#4233 Characteristics of gastric neuroendocrine tumors type 1

Introduction: Gastric neuroendocrine tumors type 1 (gNET 1) are the most prevalent among other gNET. These neoplasms demonstrate low growth rate and low malignant potential. Recent publications describe polymorphism of gNET 1, which may indicate a various course of the disease.

Conference:

Presenting Author: Konyakhina A

Authors: Konyakhina A, Feidorov I, Salimgereeva D,

Keywords: gNEN, atrophic gastritis, prognosis,

#4153 Type 1 gastric neuroendocrine tumors (g-NETs) with vitamin B12 deficiency-caused nerve function damage – A case Report

Introduction: Patients with type 1 g-NETs frequently experience VitB12 deficiency as a result of autoimmune gastritis. VitB12 deficiency infrequently leads to neurological symptoms. Unfortunately, the delay in diagnosing this condition often results in prolonged suffering and increased financial burden for the patients.

Conference:

Presenting Author: Yu F

Authors: Yu F, Cheng Z, Chen X, Chen R, Cui L,

Keywords: type 1 gastric neuroendocrine tumor, vitamin B12 deficiency, nerve function damage, case report,

#4067 Malignancy of gastric neuroendocrine tumors is higher than pancreatic neuroendocrine tumors in Chinese population – Characterisation and analysis of factors

Introduction: Based on a large-scale epidemiological survey with a total of 2010 cases of neuroendocrine tumors (NENs) in the Chinese population from multiple centers, we observed that the malignancy of gastric NENs (G3, accounting for 67.2%) is higher than that of pancreatic NENs(G3, accounting for 9.9%).

Conference:

Presenting Author: Sun W

Authors: Sun W, Fan J,

Keywords: gastric NEN, pancreatic NEN, epidemiology, multi-center,

#4039 Long-term natural history of enterochromaffin-like cell (ECL) hyperplasia

Introduction: Enterochromaffin-like cell (ECL) hyperplasia in the context of autoimmune atrophic gastritis, over a period of time, can progress to gastric neuroendocrine tumors (g-NETs) type 1.

Conference:

Presenting Author:

Authors: Karapanagioti A, Panagaki M, Ioannidou K, Papadopoulou N, Kaltsas G,

Keywords: ECL hyperplasia, g-NET type 1, gastrin,