Least predilection for distal ileum ?: (A) Carcinoid syndrome, (B) Meckel's diveiculum, (C) Crohn disease, (D) Zollinger - Ellison syndrome
Answer is D. Ans. is 'd' i.e., Zollinger-Ellison syndrome Zollinger-Ellison syndrome (gastrinoma) does not usually occur in distal ileum. Carcinoid syndrome, Meckel's diveiculum and crohn disease can affect distal ileum.