This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Small & Large Intestine, Subject name: Surgery
Duhamel procedure is done for - 
Select and explain. 
A. Hirschsprung's disease, B. HPSS, C. Meckels diverticulum, D. Volvulus
A: Hirschsprung's disease
Answer: A: Hirschsprung's disease 
Explanation: Ans. is 'a' i.e., Hirschsprung's disease * Surgery in Hirschsprung's disease aims to remove the aganglionic segment and 'pull-through' ganglionic bowel to the anus (e.g. Swenson, Duhamel, Soave and transanal procedures) and can be done in a single stage or in several stages after first establishing a proximal stoma in normally innervated bowel.