title: Fine-needle aspiration biopsy diagnosis of "invasive" temporomandibular joint pigmented villonodular synovitis.
abstract: The clinical and aspiration cytologic details of a case of temporomandibular joint pigmented villonodular synovitis are presented and correlated with imaging, surgical, histopathologic, and clinical follow-up findings; the origin of such lesions is discussed. The lesion originally presented in a 36-year-old, otherwise healthy, white man as a unilateral mass involving the temporal fossa and temporomandibular joint region. The tumor's extent was defined by magnetic resonance imaging and computed tomographic scan; there was destruction of the temporomandibular joint and erosion of the temporal cranial bones by a lesion whose maximum dimensions were estimated by imaging to be 2.75 x 3.25 cm. The lesion was initially sampled and classified by computed tomography-guided fine-needle aspiration biopsy. Following complete resection, the original diagnosis was confirmed with both hematoxylin-eosin-stained paraffin sections and immunohistochemical staining. The patient remains free of disease 7 years postoperatively.
authors.affiliation: Department of Pathology, School of Medicine, Oregon Health Sciences University, Portland, Oregon, USA.
authors.forename: Steven L
authors.initials: SL
authors.lastname: Shapiro
authors.forename: Sean O
authors.initials: SO
authors.lastname: McMenomey
authors.forename: Priscilla
authors.initials: P
authors.lastname: Alexander
authors.forename: Waldemar A
authors.initials: WA
authors.lastname: Schmidt
mesh_terms: D000328:Adult; D001707:Biopsy, Needle; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D013586:Synovitis, Pigmented Villonodular / Q000175:diagnosis / Q000473:pathology*; D013705:Temporomandibular Joint Disorders / Q000175:diagnosis / Q000473:pathology*; D014057:Tomography, X-Ray Computed