title: Cystadenoma of the common bile duct demonstrated by percutaneous transhepatic cholangiography.
abstract: Benign neoplasms of the extrahepatic biliary tract are uncommon and rarely diagnosed preoperatively. Percutaneous transhepatic cholangiography will demonstrate such lesions, and, if contrast outlines only the wall of the mass, a benign tumor may be suspected. An example of a cystadenoma of the common bile duct demonstrating this principle is presented.
mesh_terms: D002758:Cholangiography; D003138:Common Bile Duct Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D003537:Cystadenoma / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D005260:Female; D006801:Humans; D008875:Middle Aged