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
MERCEDES BENZ sign seen in 
Select and explain. 
A. Volvulus, B. Gall stone, C. Struvite calculus, D. Intussuception
B: Gall stone
Answer: B: Gall stone 
Explanation: Answer- B. Gall stoneMercedes benz sign (Also known as fack stone sign)On xray - Gall stones