胃と腸47巻8号

2012年07月発行

今月の主題 胃ポリープの意義と鑑別 主題

胃ポリープの病理学的分類・鑑別診断と臨床的意義

著者： 八尾隆史¹ 三富弘之¹ 日高康博¹² 森本崇¹²

所属機関： ¹順天堂大学医学部・人体病理病態学 ²順天堂大学医学部・消化器内科

ページ範囲：P.1192 - P.1199

要旨　胃のポリープの頻度は0.6～3％程度と報告されている．非腫瘍性上皮性ポリープのうち最も頻度が高いのは過形成ポリープで，次いで胃底腺ポリープである．そのほかにまれなものでhamartomatous inverted polyp，特殊なもので内視鏡治療後のポリープや残胃吻合部のポリープなどがある．そのほとんどは良性であるが，一部は悪性化するものも存在する．それらの取り扱いを考慮するうえで，癌化の危険性や癌化例の特徴を含めた臨床病理学的特徴を把握しておくことが重要である．

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