Multicenter study of autoimmune gastritis in Japan: Clinical and endoscopic characteristics.

Digestive Endoscopy : Official Journal of the Japan Gastroenterological Endoscopy Society
Shuichi TeraoKen Haruma

Abstract

In Japan, the prevalence of autoimmune gastritis (AIG) is assumed to be very low. With the recent rapid decrease in Helicobacter pylori (Hp) prevalence, reports on AIG are increasing. This multicenter registry study aimed to clarify the characteristics of AIG, especially its endoscopic appearance. A total of 245 patients with AIG from 11 institutions in Japan from January 2010 to October 2016 were included, and their clinical and endoscopic findings were evaluated. Mean age was 67.2 ± 11.4 years, and 63.7% of the participants were women. The most common approach to diagnose AIG was endoscopic examination. Repeated incorrect treatment for Hp infection, due to a false-positive result in 13 C-urea breath test, ranked third among the basis for diagnosis of AIG. Associated gastric lesions were type 1 neuroendocrine tumor (11.4%), adenocarcinoma (9.8%), and hyperplastic polyps (21.1%). Corpus pan-atrophy was the most common appearance (90.1%); however, remnant oxyntic mucosa was found in 31.5% of the patients (flat, localized type, 48.6%). Sticky adherent dense mucus and scattered minute whitish protrusions were also observed in approximately 30% of the patients. Despite the prevailing presumption of the antral mucosa remaining norma...Continue Reading

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Citations

Sep 25, 2019·Digestive Endoscopy : Official Journal of the Japan Gastroenterological Endoscopy Society·Osamu DohiYoshito Itoh
Aug 8, 2020·Internal Medicine·Mototsugu Kato
Jul 11, 2020·Nature Reviews. Disease Primers·Marco Vincenzo LentiAntonio Di Sabatino
Jan 7, 2021·Endoscopy International Open·Minoru KatoGabriele Wurm Johansson
Mar 28, 2021·Digestive Endoscopy : Official Journal of the Japan Gastroenterological Endoscopy Society·Akihito NagaharaKazuhide Higuchi
Feb 11, 2021·Clinical Journal of Gastroenterology·Maiko KishinoKatsutoshi Tokushige
Oct 22, 2021·Digestive Endoscopy : Official Journal of the Japan Gastroenterological Endoscopy Society·Tomoari KamadaKen Haruma

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