title: Pigmented villonodular synovitis of the temporomandibular joint.
abstract: Pigmented villonodular synovitis (PVNS) is a relatively rare disease affecting synovium-lined joints. PVNS was first fully described in 1941 by Jaffe et al, who considered it a benign inflammatory state of the synovium of uncertain etiology. Reports of this disease in the temporomandibular joint (TMJ) are extremely rare. This report describes a case of a 78-year-old man affected by PVNS of the right TMJ. Clinical examination revealed the presence of a right-sided preauricular mass; a magnetic resonance imaging scan showed a mass located lateral to the right mandibular condyle, close to the TMJ capsule. The clinical and pathologic features of the case are described.
authors.affiliation: Department of Maxillofacial Surgery, University of Rome "La Sapienza", Rome, Italy.
authors.forename: Piero
authors.initials: P
authors.lastname: Cascone
authors.forename: Fabio
authors.initials: F
authors.lastname: Filiaci
authors.forename: Francesco
authors.initials: F
authors.lastname: Paparo
authors.forename: Maria Cristina
authors.initials: MC
authors.lastname: Mustazza
mesh_terms: D000368:Aged; D005500:Follow-Up Studies; D006801:Humans; D017746:Joint Capsule / Q000473:pathology; D008279:Magnetic Resonance Imaging; D008297:Male; D008335:Mandibular Condyle / Q000473:pathology; D013583:Synovial Membrane / Q000473:pathology; D013586:Synovitis, Pigmented Villonodular / Q000175:diagnosis* / Q000473:pathology; D019224:Temporomandibular Joint Disc / Q000473:pathology; D013705:Temporomandibular Joint Disorders / Q000175:diagnosis* / Q000473:pathology