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How Has Magnifying Endoscopy Changed the Diagnosis of Chronic Gastritis? Kazuyoshi Yagi 1 , Chiyumi Oda 1 , Takahiro Hoshi 1 , Shin-ichi Morita 1 , Tsutomu Kanefuji 1 , Takeshi Suda 1 , Shuji Terai 2 1Department of Gastroenterology and Hepatology, Uonuma Institute of Community Medicine, Niigata University Medical and Dental Hospital, Minamiuonuma, Japan 2Division of Gastroenterology and Hepatology, Niigata University Graduate School of Medical and Dental Science, Niigata, Japan Keyword: Helicobacter pylori , 慢性胃炎 , 拡大内視鏡 , narrow band imaging , 萎縮 pp.1425-1437
Published Date 2018/10/25
DOI https://doi.org/10.11477/mf.1403201491
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 A majority of chronic gastritis cases are caused by Helicobacter pylori infection. From the perspective of H. pylori infection, the condition of stomach is categorized into three groups:no infection, inactive gastritis that indicates the disappearance of H. pylori, and active gastritis that indicates H. pylori-positive currently. An infection caused by H. pylori induces various metaplasia, such as pyloric metaplasia and intestinal metaplasia, during which gastric cancer occurs. We developed a magnifying endoscopic diagnosis based on the histological findings of the fundic gland mucosa and pyloric gland and intestinal metaplasia. Furthermore, we determined whether the chronic gastritis is active or inactive with the use of magnifying endoscopy. Currently, the gastric cancer risk level can be identified based on either OLGA or OLGIM, which has been employed in Western countries, using NBI magnifying endoscopy.


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電子版ISSN 1882-1219 印刷版ISSN 0536-2180 医学書院

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