Growth Pattern of Superficial Colon Tumor Determined by Retrospective Radiologic Observations Kyosuke Ushio 1 1Department of Diagnostic Radiology, National Cancer Center Central Hospital Keyword: 表面型腫瘍 , 大腸癌の自然史 , HNPCC , 注腸X線検査 pp.179-189
Published Date 1995/2/25
DOI https://doi.org/10.11477/mf.1403105314
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 Superficial tumor is designated as tumorous lesion with the form of type Ⅱa, type Ⅱb, type Ⅱc, or combined type which is described in the management rules and regulations of colon cancer, and between 6 and 20 mm in size. We analyzed radiologic examinations of superficial tumors retrospectively for the purpose of evaluating natural history of superficial tumors and the following findings were obtained : 1) Most of superficial tumor grew similarly in shape into early cancer. 2) Among sessile lesions, superficial tumors tended to change into advanced cancers. 3) Patients with hereditary non-polyposis colorectal cancer may frequently have superficial tumors whose growth pattern seemed to be the same as that of usual colon cancer.

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