The Rare Occurence of a Radation-induced Osteosarcoma in the Clavicule after Treatment of Thyroid Cancer

The authors report on a postirradiation osteosarcoma of the calvicule in a patient treated for thyroid cancer. The total absorbed dose to the right calvicule was estimated 149 Gy 60 Co and 18 MeV elektron beam). The findings are demonstrated on plain radiographs, CT-scan and bone scintigraphy. The literature on this subject is reviewed and the possible pathogenesis discussed.