Figure 16 (A and B).

Particle disease. An 82 year old male who had undergone total hip replacement for hip pain. (A) AP radiograph of the right hip shows multiple lucent lesions (arrows) on both sides of the right hip joint, abutting both the femoral and acetabular components (B) Axial CT image demonstrates multiple cavities (arrows) around the prosthesis, which do not confine to the outline of the prosthesis