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Growth of Colorectal Cancer Based on Review of Follow-up Cases Akira Matsuura 1 , Seibi Kobayashi 1 , Tatsuzo Kasugai 1 1The First Department of Internal Medicine, Aichi Cancer Center Hospital pp.859-865
Published Date 1985/8/25
DOI https://doi.org/10.11477/mf.1403109834
  • Abstract
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 Retrospectively, we investigated the morphological changes and the growth rate of colorectal cancer in 20 patients with the disease. In the cases under review, prior to surgical operation or endoscopic polypectomy, the cancer had been investigated more than twice using barium enema or endoscopy. Positive findings were obtained in 11 cases by reviewing the initial x-ray films.

 The mean diameter of the initial lesions was 1.0 cm in cases with the final diagnosis of advanced cancer and 0.8 cm in cases with early cancer. No pedunculated lesions were found on the initial x-ray films.

 Doubling time was calculated according to Collins' method. The mean doubling time was 218 days in advanced cancer and 731 days in early cancer. A 5 mm-sized adenoma required one year and eleven months to grow to 1 cm according to the rapid doubling time.

 From the mentioned above, it is reasonable to recommend the next follow-up for adenoma smaller than 5 mm to be done two years later.


Copyright © 1985, 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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