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Radiographic Characteristics of Radiation-Induced Procto-colitis Hiroyuki Ohta 1 1Department of Diagnostic Radiology, National Cancer Center Central Hospital Keyword: 放射線性腸炎 , X線像 , 鑑別診断 , びまん浸潤型大腸癌 , Sherman分類 pp.193-198
Published Date 2002/2/25
DOI https://doi.org/10.11477/mf.1403103429
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 We assess radiographic characteristics of radiation-induced procto-colitis. This type of disease is usually identified in patients who have undergone radiotherapy for pelvic malignant tumors, such as cervical cancer, prostate cancer, bladder cancer and rectal cancer. Because of their high sensitivity to radiation injury, intestinal organs are easily affected by irradiation, resulting in ulcerative changes of the mucosa, poor extension of the wall and stenosis of the lumen due to fibrosis of the submucosal or deeper layer. In serious cases, fistula or perforation are crucial problems, and surgical operation is occasionally required. A series of inflammatory bowel diseases (ulcerative colitis, Crohn's disease etc.) and malignant tumors (metastatic tumor, scirrhous type of primary carcinoma) should be distinguished on double contrast imaging. Particularly, the differential diagnosis from scirrhous type carcinoma is important due to its poor prognosis. However, it is not difficult to distinguish this diseases from others in the colorectum, if we carefully scrutinize the radiographic characteristics, refer to the clinical symptoms and enquire whether or not radiotherapy has been used on the patient in question.


Copyright © 2002, 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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