title: Unusual variant of primary sclerosing cholangitis.
abstract: Two cases of primary sclerosing cholangitis are described, in which the characteristic bile duct lesions were unusual because there was an exuberant and exaggerated fibrous replacement of the ducts which produced dense fibrotic scars in portal tracts.
mesh_terms: D000328:Adult; D001653:Bile Ducts, Intrahepatic / Q000473:pathology*; D002761:Cholangitis / Q000150:complications / Q000473:pathology*; D005260:Female; D006801:Humans; D008099:Liver / Q000473:pathology; D008105:Liver Cirrhosis, Biliary / Q000150:complications; D008875:Middle Aged; D012598:Sclerosis