title: Collagenous colitis: a transient condition? Report of two cases.
abstract: We have seen two patients with watery diarrhea whose work-up revealed a collagenous infiltration beneath the rectal epithelium. Within a year, symptoms disappeared in both. Repeated rectal biopsy revealed the disappearance of the collagen layer. Collagenous colitis may thus present as a transient condition.
mesh_terms: D000368:Aged; D002908:Chronic Disease; D003092:Colitis / Q000473:pathology*; D003094:Collagen; D003106:Colon / Q000473:pathology / Q000648:ultrastructure; D003967:Diarrhea / Q000209:etiology; D005260:Female; D006801:Humans; D008854:Microscopy, Electron; D008875:Middle Aged; D012007:Rectum / Q000473:pathology / Q000648:ultrastructure
chemical_list: D003094:Collagen