title: [Diagnosis of intramural bile duct varicose veins ("pseudo-cholangiocarcinoma sign"].
abstract: We report the case of a patient with portal hypertension and portal vein thrombosis who was admitted to hospital for evaluation prior to a scheduled portosystemic shunt operation. Ultrasound examination revealed dilatation of intrahepatic bile ducts and echogenic thickening of the walls of both right and left main bile ducts as well as the common bile duct, highly suspicious of a carcinoma. Further evaluation, however, showed a varicosis of the bile duct walls to be the cause of the thickening of the walls, the varicosis resulting from the long-standing cavernous transformation of the portal vein and the portal hypertension. This tumour-like thickening of the walls, caused by numerous tiny varicose veins, is also known as "Pseudo-cholangiocarcinoma sign" in the Anglo-American world.
authors.affiliation: Radiologische Universitätsklinik Bonn. strunk@uni-bonn.de
authors.forename: H
authors.initials: H
authors.lastname: Strunk
authors.forename: J
authors.initials: J
authors.lastname: Textor
authors.forename: J
authors.initials: J
authors.lastname: Remig
mesh_terms: D001650:Bile Duct Neoplasms / Q000000981:diagnostic imaging*; D001653:Bile Ducts, Intrahepatic / Q000098:blood supply*; D018281:Cholangiocarcinoma / Q000000981:diagnostic imaging*; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008875:Middle Aged; D011169:Portal Vein / Q000000981:diagnostic imaging*; D013927:Thrombosis / Q000000981:diagnostic imaging*; D014463:Ultrasonography; D014648:Varicose Veins / Q000000981:diagnostic imaging*