Hepatic neoplasia in two polar bears.
D002759:Adenoma, Bile Duct / Q000473:pathology / Q000662:veterinary*; D000818:Animals; D001650:Bile Duct Neoplasms / Q000473:pathology / Q000662:veterinary*; D001653:Bile Ducts, Intrahepatic / Q000473:pathology*; D006528:Carcinoma, Hepatocellular / Q000473:pathology / Q000662:veterinary*; D002335:Carnivora; D005260:Female; D008099:Liver / Q000473:pathology; D008113:Liver Neoplasms / Q000473:pathology / Q000662:veterinary*; D001503:Ursidae