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  • Title: Secondary malignant giant-cell tumor of bone. Clinicopathological assessment of nineteen patients.
    Author: Rock MG, Sim FH, Unni KK, Witrak GA, Frassica FJ, Schray MF, Beabout JW, Dahlin DC.
    Journal: J Bone Joint Surg Am; 1986 Sep; 68(7):1073-9. PubMed ID: 3745247.
    Abstract:
    Twenty-six patients who had a malignant giant-cell tumor of bone--a sarcoma either juxtaposed to a zone of typical benign giant-cell tumor or occurring at the site of a previously documented benign giant-cell tumor--have been seen at the Mayo Clinic. Of the twenty-six tumors, nineteen were secondary to a previous attempt at local control of a benign giant-cell tumor. All but one of these nineteen patients with a secondary tumor had received therapeutic irradiation four to thirty-nine years earlier. The nature and duration of the symptoms and the sites of predilection of the malignant giant-cell tumors were the same as for benign giant-cell tumor. Fibrosarcoma occurred three times as frequently as osteosarcoma. The best results of treatment of the secondary sarcoma were obtained with early ablation.
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