This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Intestinal obstruction, Subject name: Surgery
The least common type of intussusceptions is: 
Select and explain. 
A. Multiple, B. Colocolic, C. Ileoileal, D. Ileoileocolic
A: Multiple
Answer: A: Multiple 
Explanation: Types of Intussusceptions (in decreasing order) Ileocolic (77%) Ileo-ileo-colic (12%) Ilioileal (5%) Colocolic (2%): MC in adults Multiple (1%) Retrograde (0.2%)