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
'Ring sign' is seen in: September 2003 
Select and explain. 
A. Scurvy, B. Congenital syphilis, C. Gaucher's disease, D. All of the above
A: Scurvy
Answer: A: Scurvy 
Explanation: Ans. A i.e. Scurvy