Japanese

Small Cancers, Minute Cancers and Ultra Minute Cancers of the Esophagus Junko Fujiwara 1 , Kumiko Momma 1 , Takashi Fujiwara 2 , Hideto Egashira 2 , Naoto Egawa 2 , Tairo Ryotokuji 3 , Akinori Miura 3 , Tsuyoshi Katoh 3 , Yousuke Izumi 3 , Yoko Tateishi 4 , Tsunekazu Hishima 4 , Misao Yoshida 5 1Department of Endoscopy, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo 2Department of Gastroenterology, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo 3Department of Internal Medicine, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo 4Department of Pathology, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo 5Foundation for Detection of Early Gastric Carcinoma, Tokyo Keyword: 食道表在癌 , 小癌 , 微小癌 , NBI観察 , 内視鏡治療 pp.739-748
Published Date 2011/5/24
DOI https://doi.org/10.11477/mf.1403102235
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 Total of 126 small superficial cancer lesions of the esophagus less than 10mm in size were noted among 476 esophageal cancer lesions(26.4%)underwent endoscopic treatment(EMR or ESD)from January 2005 to December 2009. Ultra minute cancers less than 2mm in size occupied 9% of all small lesions, minute cancers(2<x≦5mm)32% and small cancers(5<x≦10mm)59%. Type 0-IIa lesions occupied 9% of 126 lesions, type 0-IIb 33%, type 0-IIc 57% and type 0-I 1%. T1a-EP occupied 83% of 126 small cancer lesions, T1a-LPM 4%, T1a- MM 9%, T1b-SM1 1% and T1b-SM2 3%. In cases with ultra minute cancer lesions, cancer invasion was remained within T1a-LPM. While, minute cancer lesions occupied 12%(T1a-MM 6% and T1b-SM1 6%)of all 16 lesions with invasion of T1a-MM or more and small cancer lesion 88%(T1a-MM 63% and T1b-SM2 25%). At the same time, type 0-IIc lesions occupied 88% and type 0-I 12% of 16 cancer lesions with deeper invasion. In cases with type 0-IIc lesions more than 5mm in size, deeper invasion into the muscularis mucosae or more was noted in 20% of all cases. It is recommended in endoscopic evaluation of them that endoscopic findings suggesting deeper invasion such as slight elevation close to the margin, granular irregularities in the depression and partial and strong redness should be found out.


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

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