This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T, Subject name: Surgery
[{'content': 'True about Intussusceptions in children \nSelect and explain. \nA. Most common variety is ileocolic, B. A\\/w pathological lead point, C. May be seen after viral infection, D. Can be relieved by barium enema', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Intussusception, the invagination of one poion of the intestine into an adjacent segment, is uncommon but may be life-threatening. Intussusception typically causes a strangulating bowel obstruction, which can progress to gangrene and perforation.In children,more than 80% are ileocolic, beginning several centimetres proximal to the ileocaecal valve with their apex in the ascending or transverse colon. Ref: Bailey & Love&;s Sho Practice of Surgery,E25,Page-79,80', 'role': 'assistant'}]