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
A 10 month old infant presents with intussesception, likely cause is 
Select and explain. 
A. Meckel's diverticulum, B. Mucosal polyp, C. Peyer's patch hypertrophy, D. Duplication cyst
C: Peyer's patch hypertrophy
Answer: C: Peyer's patch hypertrophy 
Explanation: Most common cause of intussusception in children is hypertrophy of Peyer's patches due to Rotavirus infection.