PMC3690678_01
Ten year old hip with dislocation.
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fig1
Status post reduction. Note GT bone loss (arrow).
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fig2
Revision surgery.
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fig3
At the time of the final revision surgery, a large encapsulated tissue mass was found to incase the gluteus minimus, medius, and greater trochanter with amorphous aseptic necrotic tissue (Figures 3, 4, and 5).
Revision surgery.
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fig4
At the time of the final revision surgery, a large encapsulated tissue mass was found to incase the gluteus minimus, medius, and greater trochanter with amorphous aseptic necrotic tissue (Figures 3, 4, and 5).
Revision surgery.
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fig5
At the time of the final revision surgery, a large encapsulated tissue mass was found to incase the gluteus minimus, medius, and greater trochanter with amorphous aseptic necrotic tissue (Figures 3, 4, and 5).
Metasul liner (removed).
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fig6
Implant revision consisted of inserting an all-polyethylene constrained acetabular liner in the existing cup combined with a new 38 mm Cobalt-Chrome femoral head (Figures 6 and 7).
New exchanged constrained liner.
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fig7
Implant revision consisted of inserting an all-polyethylene constrained acetabular liner in the existing cup combined with a new 38 mm Cobalt-Chrome femoral head (Figures 6 and 7).
Pigment laden histiocytes not limited to vascular area.
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fig8
Histological evaluation of the abnormal hip tissue revealed abundant tissue necrosis, fibrosis, and granulomatous inflammation with foreign body-type giant cell reaction (Figures 8 and 9).
Histiocytes with black (metal) pigment (arrows) diffusely seen throughout tissue specimen.
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fig9
Histological evaluation of the abnormal hip tissue revealed abundant tissue necrosis, fibrosis, and granulomatous inflammation with foreign body-type giant cell reaction (Figures 8 and 9).