This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Imaging of Musculoskeletal Infection, Subject name: Radiology
Dead bone in X ray is? 
Select and explain. 
A. More radiopaque, B. More radiolucent, C. Same as normal bone, D. Variable
A: More radiopaque
Answer: A: More radiopaque 
Explanation: ANSWER: (A) More radiopaqueREF: Principles of bone x-ray diagnosis by George Simon p. 62Dead bone as seen in Aavascular necrosis, perthe's disease, TB, osteomyelitis is usually more opaque than normal in X ray