title: A 22-year-old woman with chronic, mild, intermittent knee pain.
abstract: The following case is presented to illustrate the roentgenographic and clinical findings of a condition of interest to orthopedic surgeons. The initial history, physical findings, and roentgenographic examination are found on the first page. The final clinical and roentgenographic diagnosis is presented on the following page.
authors.affiliation: Department of Orthopaedic Surgery, University of Mississippi, Jackson, USA.
authors.forename: K A
authors.initials: KA
authors.lastname: Grinspun
authors.forename: M S
authors.initials: MS
authors.lastname: Siegel
authors.forename: D M
authors.initials: DM
authors.lastname: Kahler
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D011859:Radiography; D013586:Synovitis, Pigmented Villonodular / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000601:surgery