Postirradiation sarcoma is a rare long-term complication of radiation treatment. Taghian et al1 reported a 10-year cumulative incidence of 0.2% for sarcoma after radiation therapy. According to Laskin et al,2 osteosarcoma accounted for 13% of postirradiation sarcomas, and several authors have reported that 6% to 15% of patients with osteosarcoma of the head and neck had a history of irradiation.3