Pelvic pseudotumor: an unusual presentation of an extra-articular granuloma in a well-fixed total hip arthroplasty

J Arthroplasty. 2008 Sep;23(6):934-8. doi: 10.1016/j.arth.2007.08.003. Epub 2008 Mar 7.


A 76-year-old woman developed a pelvic mass and abdominal pain 12 years after cementless total hip arthroplasty. The mass was a cystic granuloma that communicated with the hip joint via a soft tissue herniation under the inguinal ligament. There was no acetabular lysis or defects. The shell and femoral component were well fixed, the polyethylene was worn, and a liner exchange was undertaken. The cyst was debrided, and follow-up computed tomography demonstrated resolution of the granuloma and no recurrence of the cyst. Removal of the source of the particle wear debris via liner exchange or revision surgery combined with cyst debridement via a single incision is recommended.

Publication types

  • Case Reports
  • Review

MeSH terms

  • Aged
  • Arthroplasty, Replacement, Hip*
  • Debridement
  • Female
  • Granuloma / diagnosis*
  • Granuloma / diagnostic imaging
  • Granuloma / surgery
  • Humans
  • Pelvic Neoplasms / diagnosis*
  • Pelvic Neoplasms / diagnostic imaging
  • Pelvic Neoplasms / surgery
  • Postoperative Complications*
  • Tomography, X-Ray Computed