Non-contrast-enhanced CT of the abdomen shows presence of gas in the left intrahepatic bile duct and CBD - pneumobilia.
The gallbladder cannot be well defined, no wall is seen, presence of free intramural, pericholecystic fat stranding findigs consistent with Gangrenous cholecystitis. There is a cholecystenteric fistula between the body and the 2nd portion of the duodenum with impacted stone measuring about 45mm in diameter - Bouveret syndrome
Additional findings include placement of a nasogastric tube in the stomach. Colonic diverticulosis and a previous hysterectomy as well as fixation from femoral cervix fracture on the right hip.