Diseases of the biliary ducts.
D001650:Bile Duct Neoplasms / Q000000981:diagnostic imaging; D001652:Bile Ducts; D001660:Biliary Tract Diseases / Q000000981:diagnostic imaging / Q000209:etiology; D002758:Cholangiography; D002761:Cholangitis / Q000000981:diagnostic imaging; D042882:Gallstones / Q000000981:diagnostic imaging; D006801:Humans; D007049:Iatrogenic Disease; D008103:Liver Cirrhosis / Q000150:complications / Q000000981:diagnostic imaging; D008875:Middle Aged; D010272:Parasitic Diseases / Q000000981:diagnostic imaging