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Appendiceal orifice inflammation as a skip lesion in ulcerative colitis: an analysis in relation to medical therapy and disease extent.

Abstract：

BACKGROUND:Although several reports have claimed that the appendix can be involved as a skip lesion in ulcerative colitis, they do not exclude the possibility that this skip lesion occurs as a result of medical therapy. Also, little is known about the relation between the presence of appendiceal orifice inflammation and the extent of the disease. METHODS:The presence of appendiceal orifice inflammation was prospectively assessed both endoscopically and histologically in 94 patients with active ulcerative colitis, the extent of whose disease had not been beyond the hepatic flexure. To evaluate the effect of prior medical therapy on the prevalence of appendiceal orifice inflammation, all cases were divided into two groups. Group A consisted of 66 patients who had been treated before inclusion; group B was composed of 28 patients newly diagnosed at inclusion. RESULTS:Appendiceal orifice inflammation was diagnosed in 24 (26%) of 94 patients with active subtotal ulcerative colitis, with no statistical difference observed between group A (23%) and group B (32%). In all 94 patients, the frequency of appendiceal orifice inflammation decreased significantly as the extent of disease increased, i.e., 37% in proctitis (n = 49), 17% in left-sided colitis (n = 36), and 0% in extensive colitis (n = 9) (p < 0.05). CONCLUSIONS:Appendiceal orifice inflammation as a skip lesion of ulcerative colitis is not rare, is more frequently observed in patients with less extensive disease, and is not the result of patchy improvement due to medical therapy.

journal_name

Gastrointest Endosc

journal_title

Gastrointestinal endoscopy

authors

Yang SK,Jung HY,Kang GH,Kim YM,Myung SJ,Shim KN,Hong WS,Min YI

doi

10.1016/s0016-5107(99)70293-2

keywords:

subject

Has Abstract

pub_date

1999-06-01 00:00:00

pages

743-7

issue

6

eissn

0016-5107

issn

1097-6779

pii

S0016-5107(99)70293-2

journal_volume

49

pub_type

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