Osteosarcoma is a malignant tumor characterized by an osteoid matrix or mineralized bone produced by the cancerous cells. (1) Jawbones are affected in nearly 6% of all osteosarcomas and are the fourth most common site of origin, following the femur, tibia, and humerus. (2) Osteosarcoma of the jaw (OSJ) occurs in the mandible twice as often as in th