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
Double line sign on MRI is seen in: 
Select and explain. 
A. AVN of hip, B. SCFE, C. TB hip, D. DDH
A: AVN of hip
Answer: A: AVN of hip 
Explanation: AVN of HIP Clinically sectorial sign X rays - crescent sign MRI - double line sign Treatment - core decompression/osteotomies/vascularized bone graft/replacement