title: Dedifferentiated chondrosarcomas.
abstract: The authors report twenty five cases of dedifferentiated chondrosarcoma, illustrating the principal clinical, radiographic and histological features. The prognosis is particularly grave in this neoplasm: the only correct therapy is radical removal of the tumour by amputation or disarticulation.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000671:Amputation, Surgical; D001859:Bone Neoplasms / Q000175:diagnosis* / Q000453:epidemiology / Q000601:surgery; D002813:Chondrosarcoma / Q000175:diagnosis* / Q000453:epidemiology / Q000601:surgery; D004188:Disarticulation; D005260:Female; D005266:Femoral Neoplasms / Q000175:diagnosis; D006801:Humans; D006811:Humerus; D008297:Male; D008875:Middle Aged; D012540:Scapula