title: Pigmented villonodular synovitis of the temporomandibular joint.
abstract: Pigmented villonodular synovitis (PVNS) is a proliferative disorder that affects synovium-lined joints, bursae, and tendon sheaths. It appears in both diffuse and localized forms, depending on the extent of synovial involvement. PVNS rarely involves the temporomandibular joint (TMJ); when it does, it manifests clinically as a slowly growing and painless preauricular mass that resembles a parotid tumor. TMJ dysfunction, paresthesia, and/or hearing loss can result. We present a case of a large extra-articular PVNS of the TMJ, and we review the literature.
authors.affiliation: Department of Oral and Maxillofacial Surgery, Hospital of the University of Pennsylvania, Philadelphia, PA 19104, USA. helen.giannakopoulos@uphs.upenn.edu
authors.forename: Helen
authors.initials: H
authors.lastname: Giannakopoulos
authors.forename: Joli C
authors.initials: JC
authors.lastname: Chou
authors.forename: Peter D
authors.initials: PD
authors.lastname: Quinn
mesh_terms: D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D013586:Synovitis, Pigmented Villonodular / Q000150:complications / Q000473:pathology* / Q000601:surgery; D013704:Temporomandibular Joint / Q000473:pathology* / Q000601:surgery; D013705:Temporomandibular Joint Disorders / Q000209:etiology / Q000473:pathology*