Magnifying colonoscopic features of ulcerative colitis reflect histologic inflammation.
BACKGROUND
Colonoscopy plays an important role in the diagnosis of ulcerative colitis and the determination of disease activity. Standard colonoscopic findings, however, do not often agree with histologic findings. The aim of this study was to clarify the relation between magnifying colonoscopic features and histologic inflammation in the course of ulcerative colitis.


METHODS
We performed magnifying colonoscopy examinations in 60 patients with ulcerative colitis. We classified the features into six types and analyzed the relations among these features, standard colonoscopic features (Matts grades), and pathohistological findings.


RESULTS
It was difficult to distinguish the remission stage from the active stage by standard colonoscopy in cases of Matts grade 2 disease. There was a relation, however, between the magnifying colonoscopic types and the degrees of histologic inflammation. The magnifying colonoscopic types reflected histologic inflammation status more accurately than did standard colonoscopic findings.


CONCLUSIONS
Magnifying colonoscopy is useful for determining the degree of histologic change without biopsy in patients with ulcerative colitis.
Kunihiro
Masaki
M
Department of Endoscopy, Hiroshima University Hospital, Hiroshima, Japan.
Tanaka
Shinji
S
Sumii
Masaharu
M
Ueno
Yoshitaka
Y
Ito
Masanori
M
Kitadai
Yasuhiko
Y
Yoshihara
Masaharu
M
Shimamoto
Fumio
F
Haruma
Ken
K
Chayama
Kazuaki
K
D000328:Adult; D003093:Colitis, Ulcerative / Q000473:pathology*; D003113:Colonoscopy / Q000379:methods*; D003952:Diagnostic Imaging / Q000379:methods; D005260:Female; D006801:Humans; D008297:Male; D011237:Predictive Value of Tests