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
Which of the following is not a radiological change in mucopolysaccharidosis? 
Select and explain. 
A. J shaped sella turcica, B. Spatulate ribs, C. Anterior beaking of the veebra, D. Genu varum
D: Genu varum
Answer: D: Genu varum 
Explanation: Ans. Genu varum