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胃と腸50巻13号

2015年12月発行

文献概要

今月の主題 大腸鋸歯状病変の取り扱い 主題研究

inverted SSA/Pの臨床病理学的特徴

著者: 川崎啓祐12 蔵原晃一2 大城由美3 梁井俊一1 永塚真4 上杉憲幸4 石田和之4 小林広幸5 中村昌太郎1 渕上忠彦2 菅井有4 松本主之1

所属機関: 1岩手医科大学医学部内科学講座消化器内科消化管分野 2松山赤十字病院胃腸センター 3松山赤十字病院病理診断科 4岩手医科大学医学部病理診断学講座 5福岡山王病院消化器内科

ページ範囲:P.1688 - P.1695

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要旨●大腸inverted SSA/Pの臨床病理学的特徴を明らかにするために,拡大内視鏡検査を施行し内視鏡的に摘除した7症例8病変を対象とし,遡及的に検討した.inverted SSA/Pの平均病変径は12.4±4.6mm,病変部位は右側大腸5病変,左側大腸3病変であった.肉眼型は粘液貯留を伴った表面陥凹型が5病変と最も多く,次いで表面型が2病変,隆起型が1病変であった.拡大観察ではII型pitは全例でみられ,開II型pitは6病変に,シダの葉状所見は4病変にみられた.NBI拡大観察においては,varicose microvascular vesselが6病変に,expanded crypt openingsが5病変に観察された.病理組織学的には全例で粘膜筋板の欠損を認め,recent hemorrhageは左側大腸の病変で多く認められた.以上より,通常観察および拡大内視鏡観察はinverted SSA/Pの診断に有用であると結論した.

参考文献

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掲載誌情報

出版社:株式会社医学書院

電子版ISSN:1882-1219

印刷版ISSN:0536-2180

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