title: Atypical pseudotumour after metal-on-polyethylene total hip arthroplasty causing deep venous thrombosis.
abstract: We describe a patient who developed a mass extending into the pelvis, five years after a metal-on-polyethylene total hip arthroplasty (THA). The histological pattern of perivascular lymphocytic infiltrate and fibrinoid necrosis was more in keeping with a metal-on-metal bearing failure. The pseudotumour compressed the femoral vein causing a deep venous thrombosis.
authors: Royal National Orthopaedic Hospital, Stanmore, Middlesex, UK. emmapicardo@yahoo.co.uk
authors: Natasha E
authors: NE
authors: Picardo
authors: Hesham
authors: H
authors: Al-Khateeb
authors: Rob C
authors: RC
authors: Pollock
mesh_terms: D000368:Aged; D019644:Arthroplasty, Replacement, Hip / Q000009:adverse effects*; D001672:Biocompatible Materials; D005260:Female; D015745:Granuloma, Foreign-Body / Q000150:complications / Q000175:diagnosis / Q000209:etiology*; D006622:Hip Prosthesis / Q000009:adverse effects*; D006801:Humans; D008670:Metals; D020959:Polyethylene; D011183:Postoperative Complications; D011474:Prosthesis Design; D012086:Reoperation; D020246:Venous Thrombosis / Q000150:complications / Q000175:diagnosis / Q000209:etiology*
chemical_list: D001672:Biocompatible Materials; D008670:Metals; D020959:Polyethylene