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
EXIT procedure is used in all, EXCEPT: 
Select and explain. 
A. Cystic hygroma, B. Teratoma, C. Congenital tracheal stenosis, D. Hyperophic pyloric stenosis
D: Hyperophic pyloric stenosis
Answer: D: Hyperophic pyloric stenosis 
Explanation: The ex utero intrapaum therapy (EXIT) procedure is used in circumstances in which airway obstruction is predicted at the time of delivery due to the presence of a large neck mass, such as a cystic hygroma or teratoma, or to congenital tracheal stenosis. Ref: Schwaz's principle of surgery 9th edition, chapter 39.