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Gastric Polyp Shigetaka Yoshinaga 1 , Ichiro Oda 1 , Yusaku Tanaka 1 , Masau Sekiguchi 1 , Hiroyuki Takamaru 1 , Masayoshi Yamada 1 , Seiichiro Abe 1 , Taku Sakamoto 1 , Satoru Nonaka 1 , Haruhisa Suzuki 1 , Takeshi Nakajima 1 , Yutaka Saito 1 , Hiroshi Yoshida 2 , Hirokazu Taniguchi 2 , Shigeki Sekine 2 , Ryoji Kushima 3 1Endoscopy Division, National Cancer Center Hospital, Tokyo 2Pathology Division, National Cancer Center Hospital, Tokyo 3Department of Clinical Laboratory Medicine, Shiga University of Medical Science, Otsu, Japan Keyword: , ポリープ , 隆起性病変 , 山田分類 , 内視鏡診断 pp.87-96
Published Date 2017/1/25
DOI https://doi.org/10.11477/mf.1403200817
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 Most so-called“gastric polyps”are protruding benign epithelial lesions. Dr. Yamada divided gastric polyps into four types and reported this as“Yamada's criteria”for gastric polyps. This category includes fundic gland polyps, hyperplastic polyps, hamartomatous inverted polyp, adenoma, and so on. Fundic gland polyp is a hemispherical, normal colored, non-neoplastic polyp arising from nonatrophic mucosa. Hyperplastic polyp is usually a semi-pedunculated or pedunculated reddish polyp caused by inflammation, especially from Helicobacter pylori infection. Large hyperplastic polyps have the potential to be malignant ; therefore, we should observe them carefully. Hamartomatous inverted polyp is a solitary, large, hamartomatous lesion originating from heterotopic gastric mucosa. Adenoma is a benign epithelial neoplasm, which is divided into two types:intestinal type and gastric type. Approximately 30% of gastric-type adenomas with the ingredient of cancer when detected.

 Gastric polyps also include some types of lesions ; therefore, we should be aware of the diversity of gastric polyps.


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

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