title: Extraarticular pigmented villonodular synovitis of the hip.
abstract: Pigmented villonodular synovitis of any joint in the extraarticular region is very rare. Its clinical and radiological differential diagnosis is difficult due to exhibiting findings of any soft tissue tumor. Here we report an extrarticular pigmented villonodular synovitis case of the hip of a five-year-old boy, with its radiological and histopathological aspects. The mass was completely extraarticular and was identified histologically and radiologically as pigmented villonodular synovitis. Six months after marginal excision, the lesion recurred. The physicians can face such cases of pigmented villonodular synovitis presenting with unusual extraarticular location, and the preferred excision should be wide to avoid possible recurrences.
authors.affiliation: Departments of Orthopedics and Traumatology, Dokuz Eylül University Faculty of Medicine, Inciralti-Izmir, Turkey.
authors.forename: Hasan
authors.initials: H
authors.lastname: Tatari
authors.forename: Onder
authors.initials: O
authors.lastname: Baran
authors.forename: Hasan
authors.initials: H
authors.lastname: Havitçioğlu
authors.forename: Metin
authors.initials: M
authors.lastname: Manisali
authors.forename: Meral
authors.initials: M
authors.lastname: Koyuncuoğlu
authors.forename: Dinç
authors.initials: D
authors.lastname: Ozaksoy
mesh_terms: D006615:Hip / Q000473:pathology*; D006621:Hip Joint / Q000473:pathology; D006801:Humans; D007223:Infant; D008279:Magnetic Resonance Imaging; D008297:Male; D011379:Prognosis; D013586:Synovitis, Pigmented Villonodular / Q000175:diagnosis*