Abstract Library

Welcome to the open-access search for all ENETS abstracts presented at the Annual ENETS Conferences.

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#4347 Mixed neuroendocrine non-neuroendocrine neoplasm associated with gastric autoimmunity: A clinicopathological analysis of two cases

Introduction: Two cases of mixed neuroendocrine tumour - gastric adenocarcinoma were found in patients with autoimmune atrophic gastritis. Both components expressed synaptophysin, initially suggesting a neuroendocrine tumour diagnosis. However, further examination confirmed the presence of gastric adenocarcinoma of fundic gland type.

Conference:

Presenting Author:

Authors: Huang D, Chen X, Chu J, Ma M,

Keywords: Mixed neuroendocrine tumour, autoimmune atrophic gastritis, gastric adenocarcinoma of fundic gland type,

#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,

#4221 Assessing the frequency of type I gastric neuroendocrine neoplasms in autoimmune atrophic gastritis: A multi-center study in Italy

Introduction: In autoimmune atrophic gastritis (AAG), mucosa morpho-functional changes lead to hypo-achlorhydria, hypergastrinemia, and enterochromaffin-like (ECL) cells proliferation, escalating the risk of type I gastric neuroendocrine neoplasms (gNENs). Longitudinal studies on the AAG-gNENs association are scanty.

Conference:

Presenting Author: Gallo C

Authors: Massironi S, Gallo C, Lahner E, Sciola V, Cavalcoli F,

Keywords: neuroendocrine tumor, atrophic gastritis, autoimmune gastritis, gastrin,

#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,

#3861 Incidence and prevalence of gastric neuroendocrine tumors in patients with chronic atrophic autoimmune gastritis

Introduction: The incidence of type I gastric neuroendocrine neoplasms (gNEN) has increased substantially over the past 50 years, although studies evaluating the association with chronic autoimmune atrophic gastritis (CAAG) in the long term have been inconsistent.

Conference:

Presenting Author: Gallo C

Authors: Gallo C, Laffusa A, Elvevi A, Mass S,

Keywords: atrophic gastritis, autoimmune gastritis, gastrin, neuroendocrine tumor,