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Collagenous colitis: pathogenesis and management

I A Halaby1, P C Rantis, A M Vernava

  • 1Department of Surgery, St. Louis University School of Medicine, Missouri, USA.

Diseases of the Colon and Rectum
|May 1, 1996
PubMed
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Collagenous colitis, a rare cause of watery diarrhea, involves collagen layer thickening. Its exact cause is unknown, but it

Area of Science:

  • Gastroenterology
  • Pathology
  • Internal Medicine

Background:

  • Collagenous colitis is a rare condition affecting middle-aged women, characterized by chronic watery diarrhea.
  • It involves thickening of the subepithelial collagen layer in the colon without obvious endoscopic changes.

Purpose of the Study:

  • To review current literature on collagenous colitis.
  • Focus areas include clinical course, pathology, diagnosis, and management.

Main Methods:

  • Literature review of existing studies on collagenous colitis.

Main Results:

  • Collagenous colitis is an inflammatory colon disease with fluctuating watery diarrhea.
  • Pathogenesis is unclear, but inflammation possibly triggered by a luminal agent is suggested.

Related Experiment Videos

  • Diagnosis requires colonic biopsies; medical management is primary, with surgery rarely indicated.

    • Conclusions:

    • The exact cause of collagenous colitis remains unknown, but inflammation is a likely factor.
    • Diagnostic guidelines are developing, and medical treatments show variable success.
    • Surgery is reserved for rare, treatment-resistant cases.