BILIARY-CIRRHOSIS SECONDARY TO OBSTRUCTION OF THE COMMON BILE-DUCT BYECTOPIC PANCREAS IN A COW

A 10-year-old Japanese Black cow showed icterus with gradual emaciatio n for a period of 3 months. Ultrasonography demonstrated increased ''e chogenicity'' 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 nor mal pancreatic tissue. The liver showed moderate fibrosis, with nodula r regeneration of the hepatic tissue and bile duct hyperplasia. A diag nosis of biliary cirrhosis secondary to ectopic pancreas in the common bile duct was made. (C) 1998 W.B. Saunders Company Limited.