Final answer:
Osteosarcoma and Ewing sarcoma are common bone tumors in the pediatric and adolescent population, while leukemia and lymphoma are not considered bone tumors.
Step-by-step explanation:
When it comes to bone tumors in the pediatric and adolescent population, one true statement is that osteosarcoma is the most common primary bone tumor in this age group. Osteosarcoma is a type of bone cancer that usually affects teenagers when their bones are growing rapidly. It often occurs in the long bones, such as the femur or tibia, and can cause pain, swelling, and fractures.
Another true statement is that Ewing sarcoma is another type of bone cancer that is more commonly seen in children and adolescents. It tends to affect the bones of the pelvis, chest wall, and long bones, and can cause pain, swelling, and a palpable mass. Treatment for both osteosarcoma and Ewing sarcoma may involve chemotherapy, surgery, and radiation therapy.
A false statement is that leukemia and lymphoma are bone tumors. While these malignancies involve abnormalities in blood-forming cells, they are not considered bone tumors. Leukemia is a cancer of the blood and bone marrow, while lymphoma is a cancer of the lymphatic system.