Osteosarcoma is the most common primary bone tumor in children and adolescents. It most commonly occurs during adolescence.
Where Does Osteosarcoma Begin?
Osteosarcoma usually begins in areas where bones are growing rapidly, such as near the ends of the long bones in the legs or arms:
Most tumors develop in the bones around the knee, particularly in the lower end of the thigh bone (distal femur) or the upper part of the shinbone (proximal tibia).
The upper arm bone near the shoulder (proximal humerus) is the next most common site.
However, osteosarcoma can develop in any bone, including the bones of the pelvis, shoulder, and jaw. This is particularly more common in older adults.
The symptoms often include pain, limping, and swelling in one of the limbs, such as an arm or leg. Since this tumor most commonly occurs during adolescence, the pain may initially be mistaken for pain caused by an injury, a fall, or sports activities. However, this type of pain does not usually respond well to painkillers.
When these symptoms are present, the child should be evaluated by a physician. Appropriate laboratory tests and imaging studies should be performed so that, if a tumor is present, it can be diagnosed as early as possible and effective treatment can be started.
Treatment is usually combined and includes chemotherapy and surgery.
Source: American Cancer Society
Pediatric Hematologist & Oncologist
