Avascular Necrosis of the Femoral Head — Practice
A 7-year-old boy presents with a painful limp for 2 months. X-ray of the hip shows increased density and fragmentation of the femoral head with subchondral fracture (crescent sign). MRI confirms avascular necrosis of the femoral head. What is the most likely diagnosis?
APerthes disease
BSlipped capital femoral epiphysis
CDevelopmental dysplasia of hip
DTransient synovitis