Stomach and Intestine(Tokyo) Volume 45, Issue 5 (April 2010)

Definition of Colonic IIc Lesion Osamu Tsuruta 1,2 , Hiroshi Kawano 1,2 , Shin Hasegawa 1,2 , Yasuhiko Maeyama 1,2 , Keiko Arita 1,2 , Kei-ichi Mitsuyama 1,2 , Michio Sata 1,2 1Division of GI Endoscopy, Center of Gastroenterology, Kurume University Hospital, Kurume, Japan 2Division of Gastroenterology, Department of Medicine, Kurume University School of Medicine, Kurume, Japan Keyword: 早期大腸癌 , 肉眼形態分類 , 陥凹型大腸癌 , 表面陥凹型大腸癌 , IIc pp.613-618
Published Date 2010/4/30
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 The colonic IIc is histologically defined as a superficially but absolutely depressed type neoplastic lesion of cancer or adenoma, and the depressed lesional floor is lower than the surrounding intact mucosal surface.

 It is required to differentiate it from the lesion of relative depression which histologically shows the depressed lesional bed being higher than the surrounding normal mucosal surface.

 When the colonic lesion is endoscopically suspected to have well-demarcated absolute depression, it is denoted as IIc or IIc+IIa. When suspected to be relative depression, it is denoted as IIa+IIc.

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45巻5号 (2010年4月)
電子版ISSN 1882-1219 印刷版ISSN 0536-2180 医学書院