title: Radiolucency in the common bile duct simulating a gallstone.
mesh_terms: D001646:Bile; D003135:Common Bile Duct / Q000000981:diagnostic imaging*; D003287:Contrast Media; D003937:Diagnosis, Differential; D042882:Gallstones / Q000000981:diagnostic imaging*; D006801:Humans; D008961:Models, Structural; D011859:Radiography; D013500:Surface Tension
chemical_list: D003287:Contrast Media