Abstract

Collagenous colitis was first described by Lindstrom in 1976. Now this disorder is recognized as one of the more common causes of chronic diarrhea of obscure origin. This disorder is described as a disease of colon associated with chronic watery diarrhea and the typical histologic findings of a thickened subepithelial collagenous band. But in korea a few cases have been reported. We had observed a 52-year-old businessman with chronic watery diarrhea without abdominal pain in the past. And then we had reported previously that case. We also recently observed a 42-year-old housewife with chronic watery diarrhea with lower abdominal discomfort for 10 years. Colonoscopy disclosed no gross abnormalities through the entire colon ineluding the terminal ileum but we could find the pronounced thickening of subepithelial collageous band and chronic inflammation in the lamina propria in the histologic examination. We summarized the above two cases of collagenous colitis with a review of literatures. (Korean J Gastrointest Endosc 18: 937-942, 1998)

• Keywords: Collagenous colitis , Collagen