The complications of gallstones include all of the following except:

Ans (a) Adenocarcinoma of ampulla of VaterThe complications of gallstones include gangrenous cholecystitis by pressure on the mucosa and blood vessels in an acutely inflamed gallbladder* Cholangitis by blocking the major biliary ducts and allowing bacteria to ascend into the liver* Obstructive jaundice by blocking the common duct* Acute pancreatitis by blocking the ampulla of Vater or a major pancreatic duct* Gallstone ileus.