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
True about IHPS is all except - 
Select and explain. 
A. Males commonly affected, B. Commonly presents at 3-8 weeks, C. X-Ray shows gastric dilation and gasless small intestines, D. USG is of no use in diagnosis
D: USG is of no use in diagnosis
Answer: D: USG is of no use in diagnosis 
Explanation: None