<prompt> Not a boundary of gastrinoma triangle:Junction of 2nd and 3rd part of duodenumJunction of 3rd and 4th part of duodenumJunction of head with body of pancreasJunction of cystic duct with common bile duct  <response>: Ans. b Junction of 3rd and 4th part of duodenumPassaro Triangle:Boundaries: 2nd and 3rd part of duodenum Cystic duct and CBD junction Neck of pancreas 