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
False about Zollinger Ellison syndrome: 
Select and explain. 
A. It is due to the presence of a Gastrinoma, B. Gastrin provocation tests are a part of diagnostic work up, C. It might be associated with ulcers in unusual locations in GIT, D. They may be associated with insulinomas.
D: They may be associated with insulinomas.
Answer: D: They may be associated with insulinomas. 
Explanation: Ans. (d) They may be associated with InsulinomasRef: Sabiston 20th edition Page 954* Zollinger Ellison syndrome is a manifestation of Gastrinoma* Secretin Stimulation test - is used a provocative test in cases of borderline elevation of Gastrin* ZES is associated with unusual location of ulcers like in Jejunum.