Pseudotumor presenting as a pelvic mass: a complication of eccentric wear of a metal on polyethylene hip arthroplasty.
The term pseudotumor was coined by Pandit et al (J Bone Joint Surg Br. 2008; 90:847) to describe the features of a soft tissue mass, which is neither infective nor malignant, that is found in association with hip arthroplasty. Most previously reported cases have been associated with a metal-on-metal articulation, with the largest series occurring after hip resurfacing. The author describes a patient who developed a pseudotumor secondary to particulate disease arising after polyethylene liner wear that led to a metal-on-metal articulation in conventional hip arthroplasty.
Orthopaedic Registrar, Whangarei Hospital, Northland, New Zealand.
Sarah E
SE
Murgatroyd
D015746:Abdominal Pain / Q000209:etiology; D000077:Acetabulum / Q000000981:diagnostic imaging / Q000601:surgery; D000368:Aged; D001847:Bone Diseases / Q000175:diagnosis* / Q000209:etiology* / Q000601:surgery; D005260:Female; D006104:Granuloma, Plasma Cell / Q000175:diagnosis* / Q000209:etiology* / Q000601:surgery; D006622:Hip Prosthesis / Q000009:adverse effects*; D006801:Humans; D008670:Metals; D011095:Polyethylenes; D011474:Prosthesis Design; D011475:Prosthesis Failure; D011859:Radiography
D008670:Metals; D011095:Polyethylenes