Malignomu podoben vnetni pseudotumor: redek zaplet popolne artroplastike kolkaRepše-Fokter, Alenka (Avtor) Fokter, Samo K. (Avtor) totalna artroplastika kolkanekrotični drobirmedenični tumorreakcija tujkovega tipaPurpose: Particulate debris created by accelerated polyethylene wear in totaly replaced hips causes adverse local reactions. We report an extreme form of such a reaction in a patient who developed progressive thigh pain, weakness and numbness after total arthroplasty of his left hip. Methods: An abdominopelvic computed tomogram showed a large intrepelvic cystic mass interpreted as a malignant tumor. Dark greyish-green fluid was aspirated from the cyst and cytopathologic examination showed necrotic debris without malignant cells. Biopsy revealed necrosis and abundant foreign body granulation tissue with polarizable debris. Results: During surgical removal of the cyst a defect of the inner acetabular wall was noted. After successful revision arthroplasty with allograft bone the clinical symptoms improved. Conclusion: A foreign-body reaction to wear debris may produce an intrapelvic mass and corresponding symptoms. Cytologic and histologic examination of the mass or fluid may aid in interpreting the clinical picture and imaging studies.20092024-04-19 08:56:50Znanstveno delo88380UDK: 617.581-089COBISS_ID: 437155ISSN pri članku: 1855-5640sl