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Long-term Observation of Adenoma of the Colon Mamoru Nishizawa 1 1Tokyo Metropolitan Cancer Detection Center Keyword: 大腸腺腫のfollow-up , de novo carcinomaの発育・進展ポリペクトミーの適応 , 大腸癌の自然史 , 表面型早期大腸癌 pp.1519-1530
Published Date 1995/11/25
DOI https://doi.org/10.11477/mf.1403105583
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 Five hundred and fifty six cases of colonic polyp, 5 to 10 mm in size, (487 cases of adenoma and 69 cases of m cancer) were followed for 1 to 11 years (2 years and 7 months on the average), and the following results were obtained.

 (1) Malignant transformation of the colonic polyp was rare.

 (2) Existence period of mucosal cancer of the colon was relativelylong.

 (3) Colonic polyp less than 10 mm in size is not an absolute indication for polypectomy.

However, a superficial lesion with a depression may invade the submucosal layer even though surface area is small, and it may be overlooked by radiologic and endoscopic examinations.


Copyright © 1995, 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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