Japanese

Pathological Diagnosis of Ischemic Colitis (IC) and Antibiotic Associated Colitis (AAC) pp.623-632
Published Date 1986/6/25
DOI https://doi.org/10.11477/mf.1403110351
  • Abstract
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 IC was pathologically diagnosed in 26 (84%) out of 31 cases in which biopsy specimens were taken within three days after the onset of symptoms.In contrast,IC was dianosed in four (40%) out of ten cases when biopsy was done between four and seven days after the onset and in only one (8%) out of 13 cases with biopsy done eight days or after.

 Among 31cases with biopsy done in the first three days, submucosal layer was contained in ten cases leaving 21 cases without submucosal layer. IC was pathologically diagnosed in nine cases among the former group and 17 among the latter.These data demonstrate that the earlier the biopsy specimen is obtained the better chance we have in diagnosing IC and that the biopsy specimen does not necessarily have to contain submucosal layer to be useful in the diagnosis.

 Pseudomembranous colitis type (PMC) of AAC were easy to pathologically diagnose if the pseudomembrane was picked up sufficiently.

 Non-PMC (acute hemorrhagic colitis: AHC), however, was not so easy to diagnose from biopsy specimen as in IC.Out of 16 cases of AHC only nine were pathologically diagnosed when biopsy specimens were obtained within three days after the onset.

 Thus, it seems that the histopathological appearance of some of AHC is too subtle to be recognized as abnormal.

 Histopathological difference between IC and AHC is merely the one in severity.There seem to be many aspects common to these two disease entities, which remain to be investigated.


Copyright © 1986, 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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