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: Pediatrics
Wilms' tumor is associated with the following except- 
Select and explain. 
A. Aniridia, B. Horse-shoe kidney, C. Hemihyperophy, D. Opsoclonus
D: Opsoclonus
Answer: D: Opsoclonus 
Explanation: Ans. is 'd' i.e., Opsoclonus