Pathology of Tumors Arising in the Fundic Gland Mucosa Takashi Yao 1 , Hiroya Ueyama 2 , Yumi Ohshiro 3 , Taro Kurosawa 1,2 , Atsushi Ikeda 1,2 , Daiki Abe 1,2 , So Okano 1 1Department of Human Pathology, Juntendo University Graduate School of Medicine, Tokyo 2Department of Gastroenterology, School of Medicine, Juntendo University, Tokyo 3Department of Pathology, Matsuyama Red Cross Hospital, Matsuyama, Japan Keyword: 胃底腺型腺癌 , 胃底腺粘膜型腺癌 , 幽門腺腺腫 , 胃型腺腫 , 粘液形質 pp.1299-1308
Published Date 2021/9/25
DOI https://doi.org/10.11477/mf.1403202556
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 As the incidence of Helicobacter pylori infection decreases, various epithelial tumors with gastric phenotype such as fundic gland type, fundic gland mucosa type, foveolar type, and pylori gland type are becoming more common in the fundic gland mucosa without active inflammation, atrophy, and intestinal metaplasia. Despite these widely known clinicopathological features, tumors with complex histology or cell differentiation have also become prevalent ; their prevalence has made classification and differential diagnosis difficult. In this paper, we explained the histopathological features of these tumors and the points of differential diagnosis. Further, we considered the problems of histological classification.

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