‘Pseudotumour’ invading the proximal femur with normal metal ions following metal on metal hip resurfacing
- Resource Type
- Academic Journal
- Authors
- Krishnan, Harry; Sugand, Kapil; Ali, Ibrahim; Smith, Jay
- Source
- BMJ Case Reports. Jan 01, 2015 2015(3)
- Subject
- Language
- English
- ISSN
- 1757-790X
A 75-year-old woman who had undergone hybrid metal-on-metal hip resurfacing 8□years earlier underwent revision arthroplasty because of hip, groin and lateral thigh pain. The main differential was aseptic loosening; however, serum cobalt and chromium levels were normal. Multiple imaging modalities revealed a periprosthetic, cystic soft tissue mass adjacent to the proximal femur. A large ‘pseudotumour’ with proximal femoral invasion was found at revision arthroplasty. We report the first finding of a ‘pseudotumour’ invading the proximal femur with normal metal ions following metal on metal hip resurfacing.