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Please use this identifier to cite or link to this item: http://hdl.handle.net/11665/1803

Title: Multicenter study of autoimmune gastritis in Japan: Clinical and endoscopic characteristics.
Authors: Terao, Shuichi
Suzuki, Shiho
Yaita, Hiroki
Kurahara, Koichi
Shunto, Johji
Furuta, Takahisa
Maruyama, Yasuhiko
Ito, Masanori
Kamada, Tomoari
Aoki, Rika
Inoue, Kazuhiko
Manabe, Noriaki
Haruma, Ken
Keywords: autoimmune gastritis
endoscopic appearance
remnant oxyntic mucosa
scattered minute whitish protrusions
sticky adherent dense mucus
Issue Date: 28-Jul-2019
Publisher: Wiley
Citation: Dig Endosc. 2020 Mar;32(3):364-372. doi: 10.1111/den.13500. Epub 2019 Oct 2.
Series/Report no.: 32;3
Abstract: BACKGROUND AND AIM: 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. METHODS: 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. RESULTS: 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 normal, 42.3% of the patients presented with various extents of atrophy, and patchy redness and circular wrinkle-like patterns were both observed in approximately 20% of the patients. CONCLUSIONS: The present study showed some prominent clinical characteristics and endoscopic findings of AIG. We believe that our study will facilitate the diagnosis of potential AIG.
Description: 著者最終稿(査読済み)
URI: http://hdl.handle.net/11665/1803
ISSN: 1443-1661
0915-5635
Appears in Collections:消化器内科

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