title: Localized pigmented villonodular synovitis: arthroscopic treatment of a lesion arising from the quadriceps tendon sheath.
abstract: Pigmented villonodular synovitis (PVNS) is a rare benign proliferative growth of synovium of obscure etiology with a wide spectrum of clinical presentation. Localized PVNS, also known as giant cell tumor of the tendon sheath, is even more uncommon. Localized PVNS of the knee is a rare, idiopathic condition presenting with symptoms that can mimic other intra-articular pathologies. The condition is usually monoarticular, the knee being the most commonly affected joint. We report a rare case of PVNS arising from the quadriceps tendon sheath. It was successfully treated with arthroscopic intralesional excision. At 18 months' follow-up, there has been no recurrence.
authors.affiliation: King's College Hospital, Denmark Hill, London, England. kakaralagk@yahoo.com
authors.forename: Gopikrishna
authors.initials: G
authors.lastname: Kakarala
authors.forename: Praveen
authors.initials: P
authors.lastname: Peddu
authors.forename: Om
authors.initials: O
authors.lastname: Lahoti
mesh_terms: D001182:Arthroscopy / Q000379:methods*; D001707:Biopsy, Needle; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007150:Immunohistochemistry; D007719:Knee Joint; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D010147:Pain Measurement; D018570:Risk Assessment; D012720:Severity of Illness Index; D013586:Synovitis, Pigmented Villonodular / Q000473:pathology* / Q000601:surgery*; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome