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Growth Pattern of Colorectal Tumours: From the 44th Meeting of the Japanese Research Society for Cancer of the Colon and Rectum Tadahiko Masaki 1 1The First Department of Surgery, Faculty of Medicine, The University of Tokyo Keyword: 自然史 , 遡及的検討 , 表面隆起型病変 , 無茎性病変 , 表面陥凹型病変 pp.1649-1652
Published Date 1996/12/25
DOI https://doi.org/10.11477/mf.1403104477
  • Abstract
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 Morphological changes were analyzed chronologically in 98 colorectal tumours presented at the 44th Meeting of the Japanese Research Society for Cancer of the Colon and Rectum. Retrospective study showed that types Ⅱa and Ⅰs were the predominant initial shapes of Type 2 or 3 advanced cancer. In this study, type Ⅱa to type Ⅰs and type Ⅱa to Type 1 transitions were not infrequently observed. Prospective investigation of 24 superficial type tumours revealed that type Ⅱa to type Ⅰs and type Ⅱa + Ⅱc to type Ⅱa transitions actually existed. However, natural history of type IIc and Ⅱc + Ⅱa tumours is not unveiled yet. More effort is needed to find type Ⅱc and Ⅱc + Ⅱa lesions and follow them prospectively to clarify their natural history.


Copyright © 1996, Igaku-Shoin Ltd. All rights reserved.

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

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