Biliary cirrhosis secondary to obstruction of the common bile duct by ectopic pancreas in a cow.
A 10-year-old Japanese Black cow showed icterus with gradual emaciation for a period of 3 months. Ultrasonography demonstrated increased "echogenicity" of the entire liver, with marked dilatation of the gall-bladder. At necropsy, the common bile duct was found to be obstructed by focally thickened fibrous tissue adjacent to a flesh-like mass (9 x 4 x 4 mm) attached to the wall of the duct. The mass consisted of normal pancreatic tissue. The liver showed moderate fibrosis, with nodular regeneration of the hepatic tissue and bile duct hyperplasia. A diagnosis of biliary cirrhosis secondary to ectopic pancreas in the common bile duct was made.
Shimada
A
A
Department of Veterinary Pathology, Tottori University, Tottori-shi, Japan.
Iwata
K
K
Morita
T
T
Umemura
T
T
Yamaga
Y
Y
Kagota
K
K
D000818:Animals; D002417:Cattle; D002779:Cholestasis / Q000150:complications / Q000473:pathology / Q000662:veterinary*; D002828:Choristoma / Q000150:complications / Q000473:pathology* / Q000662:veterinary*; D017809:Fatal Outcome; D005260:Female; D008105:Liver Cirrhosis, Biliary / Q000209:etiology / Q000662:veterinary*; D010179:Pancreas