Fig. 1: AP radiograph of the right hip showing a bump (arrow) at the anterosuperior head-neck junction with atypical lateral extension of the epiphyseal line. Also note the presence of an os acetabuli.
Fig. 2: Axial radiograph of the right hip. The deformity at the head-neck-junction (arrow) is rotated outward.
AP and axial radiographs showed joint space narrowing, subchondral sclerosis and small osteophytes at the femoral head and acetabulum.