title: [Parosteal osteosarcoma as a cause of chronic knee pain in an athlete].
abstract: The present case of a rare, however existing disease, which remained undetected for years, is to underline the necessity of diligent diagnosis. We report about a 23-year-old football player who complained about permanent pain in the right knee from the age of 13. In spite of repeated sports- and orthopedic-specific examinations correct diagnosis could only be established eight years after the onset of the symptoms. Differential diagnosis and the present mode of the therapy of this tumor close to the knee joint are demonstrated.
authors.affiliation: Klinik und Poliklinik für Allgemeine Orthopädie, Westfälischen Wilhelms-Universität Münster.
authors.forename: P
authors.initials: P
authors.lastname: Wuisman
authors.forename: A
authors.initials: A
authors.lastname: Härle
authors.forename: U
authors.initials: U
authors.lastname: Frohberger
mesh_terms: D000328:Adult; D001265:Athletic Injuries / Q000000981:diagnostic imaging*; D003937:Diagnosis, Differential; D005266:Femoral Neoplasms / Q000000981:diagnostic imaging* / Q000601:surgery; D006801:Humans; D007718:Knee Injuries / Q000000981:diagnostic imaging*; D007719:Knee Joint / Q000000981:diagnostic imaging; D008297:Male; D012516:Osteosarcoma / Q000000981:diagnostic imaging* / Q000601:surgery; D012916:Soccer; D013177:Sports; D014057:Tomography, X-Ray Computed
vernacular_title: Parossales Osteosarkom als Ursache chronischen Knieschmerzes beim Sportler.