Final answer:
The most common primary tumor arising from bone in adults is osteosarcoma. Metastatic cancer is more common than primary bone tumors in adults.
Step-by-step explanation:
The most common primary tumor arising from bone in adults is osteosarcoma. Osteosarcoma is a type of bone cancer that primarily affects adolescents and young adults, although it can occur in older adults as well. It usually develops in the long bones of the body, such as the femur or tibia.
Other types of primary bone tumors in adults include chondrosarcoma, Ewing sarcoma, and chordoma. However, osteosarcoma is the most common.
It's important to note that metastatic cancer, or cancer that has spread to the bones from other parts of the body, is more common than primary bone tumors in adults.