title: Primary carcinoma of the extrahepatic bile ducts.
mesh_terms: D002759:Adenoma, Bile Duct / Q000401:mortality / Q000601:surgery; D000368:Aged; D001650:Bile Duct Neoplasms / Q000401:mortality / Q000601:surgery; D001706:Biopsy; D002763:Cholecystectomy; D004386:Duodenum / Q000601:surgery; D005260:Female; D006801:Humans; D007813:Laparotomy; D008297:Male; D008875:Middle Aged; D010180:Pancreatectomy