title: Extrahepatic biliary carcinoma in sloth bears.
abstract: Extrahepatic biliary carcinoma was found in each of 5 adult sloth bears that died between 1970 and 1984 while on exhibit in Ohio zoos. The tumor was characterized by numerous mucin-producing neoplastic glands scattered throughout abundant fibrous stroma. The cause of the tumor was not determined.
mesh_terms: D002293:Adenocarcinoma, Scirrhous / Q000453:epidemiology / Q000662:veterinary; D002759:Adenoma, Bile Duct / Q000453:epidemiology / Q000662:veterinary; D000818:Animals; D000836:Animals, Zoo; D001650:Bile Duct Neoplasms / Q000453:epidemiology / Q000662:veterinary*; D002335:Carnivora; D005260:Female; D005706:Gallbladder Neoplasms / Q000453:epidemiology / Q000662:veterinary*; D008297:Male; D009820:Ohio; D014481:United States; D001503:Ursidae