This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
Henoch - Schonlein purpura may rarely cause 
Select and explain. 
A. Intussusception, B. Volvulus, C. Hernia, D. None of the above
A: Intussusception
Answer: A: Intussusception 
Explanation: None