PMC4909725_01
Radiographs of the left hip in anteroposterior view showing hip osteoarthritis and mixed radiolucent and radiopaque areas (white arrow).
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Anteroposterior and axial radiographs (Fig. 1) showed incipient hip osteoarthritis.
Preoperative radiograph showing cephalic bone necrosis and magnetic resonance image demonstrating avascular necrosis and acetabular bone changes.
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This X-ray shows lytic areas (Fig. 2).
Immediate postoperative radiograph, cementless implants well positioned.
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As demonstrated in Fig. 3, the immediate postoperative radiograph shows a correct implant positioning.
Radiograph and computerized tomography (CT) demonstrating left acetabular and iliac bone destruction. The CT also shows esclerotic and lytic lesions on right iliac bone.
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The CT scan shows esclerotic and lytic areas on the right iliac bone (Fig. 4). A complete succession of bone radiographs (skull, humerus, spine, femur, pelvis, tibia) was performed, showing pathological findings exclusively in the pelvic bone: generalized mixed radiolucent and radiopaque areas with characteristic cotton-wool appearance (Fig. 4).
Histological section: no malignant cells can be observed, but there is an increase in size and number of osteoclasts, with multiple nuclei per cell.
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The histological section can be seen in Fig. 5.