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: Radiology
A neonate has a mass in kidney. USG shows hypoechoic shadow. The most likely diagnosis is: 
Select and explain. 
A. Wilm's tumour, B. Neuroblastoma, C. Mesonephrohlastic tumour, D. Adenoma
C: Mesonephrohlastic tumour
Answer: C: Mesonephrohlastic tumour 
Explanation: Ans. Mesonephrohlastic tumour