title: Fine needle aspiration of pigmented villonodular synovitis of the temporomandibular joint.
abstract: Temporomandibular joint (TMJ) problems are usually the result of functional disorders. Tumors of the TMJ are rarer entities, the diagnosis of which may be delayed due to a clinical impression of a functional ailment. We report a case of a patient with a recurrent TMJ area lesion diagnosed cytologically as pigmented villonodular synovitis (PVNS), an entity that very rarely involves the TMJ and is usually diagnosed by histology. The differential diagnosis of PVNS in the context of its location in and around the TMJ is also discussed.
authors.affiliation: Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California 90095, USA. davidlu@mednet.ucla.edu
authors.forename: David Y
authors.initials: DY
authors.lastname: Lu
authors.forename: Liping
authors.initials: L
authors.lastname: Zhang
authors.forename: Sophia K
authors.initials: SK
authors.lastname: Apple
authors.forename: Sarah M
authors.initials: SM
authors.lastname: Dry
authors.forename: Neda A
authors.initials: NA
authors.lastname: Moatamed
mesh_terms: D000328:Adult; D044963:Biopsy, Fine-Needle; D006801:Humans; D008297:Male; D012008:Recurrence; D013586:Synovitis, Pigmented Villonodular / Q000175:diagnosis* / Q000473:pathology; D013704:Temporomandibular Joint / Q000473:pathology* / Q000601:surgery