School ager with left hip pain for 5 weeks Pediatric Imaging Musculoskeletal June 5, 2026March 19, 2026 AP (left) and frog-leg (right) radiographs of the left hip show in the left femoral head a subarticular lucency and sclerosis and an irregular contour along with loss of height of the femoral head. The diagnosis was Legg-Calve-Perthes disease. Related Published June 5, 2026March 19, 2026