An autopsy case of primary mandibular osteosarcoma

A 45-year-old Japanese woman presented complaining of swelling of the right mandible. Initial histopathological diagnosis was cemental dysplasia. Because of rapid enlargement of the lesion, surgical resection was performed. The post-surgical second histopathological diagnosis was osteosarcoma. In spite of additional treatment with radiotherapy and chemotherapy, the patient died 32 months after the initial visit. Autopsy revealed osteosarcoma with metastases infiltrating of a number of organs, including the lungs, heart, and vertebrae.