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Clinical Study of Ulcerative Colitis (UC) Patients with Disease Discontinuity: For New Diagnostic Concept of UC Ichiro Hirata 1 1The Second Department of Internal Medicine, Osaka Medical College Keyword: 潰瘍性大腸炎 , 区域性大腸炎 , 虫垂開口部病変 , 非連続性病変 pp.525-533
Published Date 2001/3/25
DOI https://doi.org/10.11477/mf.1403103187
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 In order to reconsider the traditional diagnostic concept of ulcerative colitis (UC), UC patients with various patterns of disease discontinuity were clinically assessed.

 The presence of UC patients with various patterns of disease discontinuity was retrospectively evaluated in 186 patients with ulcerative colitis. Rectal sparing or segmental lesion due to treatment were found in 24 (12.9%) of all UC patients. Right-sided or segmental colitis was found in 7 (3.8%) of all UC patients. None of them showed rectal disease but 5 (70%)cases developed typical rectal involvement of UC within 3 years. Appendiceal orifice inflammation as a skip lesion was found in 16 (15.4%) of 104 patients with active UC that did not extend beyond the hepatic flexure. This lesion was detected at an early stage of disease development in 10 cases and detected during follow-up in 6 cases. Sixty-three percent of the lesions disappeared after UC therapy and none of them extended to the anal site of the colon. Patchy inflammation of the rectum was found in 4 (2.2%) of 186 UC patients. This lesion was detected in young patients and created a difficulty in distinguishing UC from infectious colitis. In spite of the diagnostic difficulty, two cases received SASP therapy and disease extension was prevented.

 Our data has challenged the concept of that UC is a continuous and homogeneous inflammatory process with constant rectal involvement and we recommended the mention of the above reported discontinuous lesions in the diagnostic criteria of UC.


Copyright © 2001, 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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