레진 매식체 주위에 생신 골육종의 치험례

Osteosarcoma around the resin implant in the area of the mandible-A case report

Osteosarcomas of the maxilla and mandible are frequently osteoblastic and parosteal types. They are different from the osteosarcomas of the long bone skeletal lesions in their biologic behavior: the average of onset is 10 to 20 years later, histopathologic variables are more favorable, distant metastases occur less frequently, and survival rates are higher than for long bone lesions. A patient with osteosarcoma of the mandible was managed by radical surgical excision and radical neck dissection followed by radiation therapy. Seven years before our surgical treatment, the patient had received the treatment of hemimandibulectomy and reconstruction with resin implant for aneurysmal bone cyst in another hospital. In review of the gross & microscopic evaluation and past history of the patient, we can find that resin implant material might be related to tumorigenesis. And it is very important to make the accurate diagnosis of aneurysmal bone cyst in consideration of the osteosarcoma involvement.