system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
A body builder taking steroids and creatinine presented with hip pain and unable to squat. On MRI, femoral aicular surface is disrupted and there is cresent sign seen on radiograph. What is the diagnosis?
assistant
The correct answer is  History of intake of steroids usually results in avascular necrosis. The classic appearance of a thin subchondral fracture line known as "Crescent sign". It is seen on X -ray signifies Avascular necrosis. Most common location of AVN is Head of Femur which is called Chandelier's sign.