This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pancreas, Subject name: Surgery
Not a boundary of gastrinoma triangle: 
Select and explain. 
A. Junction of 2nd and 3rd part of duodenum, B. Junction of 3rd and 4th part of duodenum, C. Junction of head with body of pancreas, D. Junction of cystic duct with common bile duct
B: Junction of 3rd and 4th part of duodenum
Answer: B: Junction of 3rd and 4th part of duodenum 
Explanation: 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