Illustration of the Whipple procedure. Removal of the head of the pancreas, extrahepatic bile ducts and the gallbladder, with reconstruction through hepaticojejunal (A), gastrojejunal (B) and pancreaticojejunal (C) anastomosis. The illustration on the left shows a normal anatomy and the areas for section in view of the operation. The illustration on the right shows the result of the operation.