title: Klatskin tumors.
mesh_terms: D002759:Adenoma, Bile Duct / Q000473:pathology*; D001650:Bile Duct Neoplasms / Q000473:pathology*; D001653:Bile Ducts, Intrahepatic / Q000473:pathology*; D006801:Humans; D008099:Liver / Q000473:pathology*