Histopathological Diagnosis of Gastritis Ryoji Kushima 1 1Department of Clinical Laboratory Medicine, Shiga University of Medical Science, Otsu, Japan Keyword: 胃炎 , 病理診断 , Helicobacter pylori , 京都分類 , 除菌後胃炎 pp.15-25
Published Date 2016/1/25
DOI https://doi.org/10.11477/mf.1403200520
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 Diagnosis and classification of gastritis has a long history that begins in histopathological studies using stomachs resected by autopsy or surgery. Helicobacter pylori(H. pylori)infection has been considered to be the main cause of gastritis, especially in Japan. Gastritis has basically been classified into acute and chronic gastritis and etiologically into types A, B, and C. Updated Sydney system classifies it into atrophic and nonatrophic gastritis. With the development and improvement of the endoscopic equipment and procedures such as magnifying endoscopy and image enhancement, the diagnosis of gastritis is becoming more complicated. Some types of gastritis are not related to H. pylori infection; also, the status of gastric mucosa after eradication of H. pylori has been of interest. Considering the Kyoto classification of gastritis and the Kyoto global consensus meeting on H. pylori gastritis, the author briefly shows the representative histopathological findings of various types of gastritis that both clinicians and pathologists should understand.

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