Biliary obstruction as a consequence of gastric dilatation volvulus in a German shepherd dog

A 5‐year‐old, female, neutered German shepherd dog was presented with a suspicion of extrahepatic biliary obstruction following emergency surgery and gastropexy for gastric dilatation and volvulus 4 days prior at the referring practice. Three days postoperatively, biochemical changes were consistent with a cholestatic pattern. Following referral, abdominal ultrasound was performed, which showed a dilated common bile duct and cystic duct, distended gall bladder without organised echogenic material, and an increased amount of gas in the stomach. Exploratory laparotomy identified an incomplete de‐rotation of the stomach. Subsequently, the mesoduodenum and hepatoduodenal ligament, wherein the common bile duct lies, were torsed; the gall bladder was distended as a result. The gastropexy was released and stomach fully de‐rotated, which resulted in the resolution of the common bile duct obstruction.