title: Three cases of unsuspected double gallbladder.
mesh_terms: D000368:Aged; D002764:Cholecystitis / Q000473:pathology; D002765:Cholecystography; D002769:Cholelithiasis / Q000000981:diagnostic imaging / Q000473:pathology; D003549:Cystic Duct / Q000473:pathology; D005704:Gallbladder / Q000002:abnormalities* / Q000473:pathology; D006801:Humans; D008297:Male; D008875:Middle Aged