대한대장항문학회

Background : Generally ulcerative colitis has a character that has a continuous pathological<br>lesion from the rectum toward the cecum. Ulcerative appendicitis with a skipped appendiceal<br>orifice lesion, which is unusual in ulcerative colitis, has been infrequently reported, and its<br>clinical characteristics have not been identified.<br>Purpose : This study was carried out to evaluate the incidence rate and the clinical<br>characteristics of ulcerative appendicitis.<br>Methods : One hundred consecutive patients with ulcerative colitis who had been treated<br>from Jan. 1997 to Aug. 1998 at Song-Do Colorectal Hospital were used for the study. Data<br>evaluated included age, sex, involved site, clinical type, clinical severity of the disease, and<br>endoscopic severity of the disease. Results: Nineteen (19%) of the 100 patients had skipped<br>lesions around the appendiceal orifice; the other 81 did not. There were no significant<br>differences between these two groups with respect to the age and the sex distributions, the<br>involved site, the clinical type, and the clinical severity. There was a correlation between the<br>endoscopic grades, based on the Riley classification, of the lesions at the rectum and at the<br>appendiceal orifice. Seven patients (36.8%) of the 19 patients with appendiceal orifice lesions<br>showed an extended lesion from the appendiceal orifice to the cecum.<br>Conclusions : We suggest that appendiceal lesions in ulcerative colitis are not infrequent.<br>Even though no significant differences in the clinical characteristics of ulcerative colitis with<br>ulcerative appendicitis, compared with those of ulcerative colitis without ulcerative penicillins,<br>were found, we suggest that more profound study of ulcerative appendicitis probably<br>contribute to understand the pathophysiology of ulcerative colitis.<br>