title: Two contrasting presentations of localised pigmented villonodular synovitis of the knee.
abstract: Localised pigmented villonodular synovitis (LPNS) is a rare condition which most commonly affects the knee. We report two contrasting cases highlighting their different clinical presentations, investigations and subsequent treatments. Arthroscopic diagnosis was performed and used as a therapeutic tool. Pre-operative MRI was also an important contributor to diagnosis. LPNS should be included in the differential diagnosis of a young adult presenting with mechanical symptoms within the knee.
authors.affiliation: Ewelme, Harlow Road, Roydon CM19 5HH, UK. Erdunstan@aol.com
authors.forename: E
authors.initials: E
authors.lastname: Dunstan
authors.forename: R
authors.initials: R
authors.lastname: Freeman
authors.forename: G
authors.initials: G
authors.lastname: Dowd
mesh_terms: D000328:Adult; D001178:Arthroplasty; D006801:Humans; D007719:Knee Joint / Q000503:physiopathology*; D008279:Magnetic Resonance Imaging; D008297:Male; D013586:Synovitis, Pigmented Villonodular / Q000175:diagnosis* / Q000503:physiopathology* / Q000601:surgery