title: Case reports: Osteosarcoma without radiographic evidence of tumor.
abstract: There have been cases of osteosarcoma in which conventional radiographs showed only minimal abnormalities. However, the absence of any evidence of tumor has not been reported. We report a unique case of osteosarcoma in a patient who originally presented with a fracture incurred after minimal trauma. The patient had no radiographic evidence of the tumor even after retrospective analysis.
authors.affiliation: Department of Orthopaedic Surgery, Washington University School of Medicine, St. Louis, MO 63110, USA.
authors.forename: Brandon A
authors.initials: BA
authors.lastname: Ramo
authors.forename: Michael
authors.initials: M
authors.lastname: Kyriakos
authors.forename: Douglas J
authors.initials: DJ
authors.lastname: McDonald
mesh_terms: D000058:Accidental Falls; D001707:Biopsy, Needle; D001858:Bone Nails; D002675:Child, Preschool; D003131:Combined Modality Therapy; D003937:Diagnosis, Differential; D017809:Fatal Outcome; D005264:Femoral Fractures / Q000000981:diagnostic imaging / Q000601:surgery; D005266:Femoral Neoplasms / Q000175:diagnosis* / Q000628:therapy; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D012516:Osteosarcoma / Q000175:diagnosis* / Q000628:therapy; D011859:Radiography; D016474:Weight-Bearing