title: Destructive synovial hemangioma of the hip resembling pigmented villonodular synovitis.
abstract: We report a case of synovial hemangioma of the hip causing joint destruction severe enough to warrant arthroplasty in a 32-year-old man who presented with a 2-year history of hip pain and worsening limp. Plain radiographs demonstrated advanced degenerative changes of the hip articular surface. Magnetic resonance imaging revealed changes consistent with pigmented villonodular synovitis throughout the joint and erosion of the acetabular bone. A total hip arthroplasty was performed, and histopathologic examination of the resected tissue demonstrated synovial hemangioma. This case, unique in the literature, demonstrates the destructive capacity and diagnostic pitfalls of synovial hemangioma.
authors.affiliation: The London Bone and Soft Tissue Sarcoma Unit, Brockley Hill, Stanmore, Middlesex, United Kingdom.
authors.forename: Nicholas S
authors.initials: NS
authors.lastname: Kalson
authors.forename: Panagiotis D
authors.initials: PD
authors.lastname: Gikas
authors.forename: Roberto
authors.initials: R
authors.lastname: Tirabosco
authors.forename: Paul
authors.initials: P
authors.lastname: O'Donnell
authors.forename: John A
authors.initials: JA
authors.lastname: Skinner
authors.forename: Adrienne M
authors.initials: AM
authors.lastname: Flanagan
mesh_terms: D000328:Adult; D003937:Diagnosis, Differential; D006391:Hemangioma / Q000175:diagnosis*; D006801:Humans; D007592:Joint Diseases / Q000175:diagnosis*; D007719:Knee Joint; D008297:Male; D013583:Synovial Membrane; D013586:Synovitis, Pigmented Villonodular / Q000175:diagnosis*