Figure 5: (a) Preoperative anteroposterior radiograph of the pelvis of a 14-year-old boy who had Ewing sarcoma of the acetabulum and pubis. (b) Axial T2-weighted MRI showing the tumor arising in the acetabulum. (c) Postoperative radiograph showing plate fixation of the proximal femur to the remaining ilium after PII-III resection. (d) Plain radiograph showing screw breakage 2 years after first iliofemoral arthrodesis. (e) Plain radiograph 11 years after refixation.