What is an osteoid osteoma?
A person with an osteoid osteoma has abnormal bone cells that multiply to form a benign tumor. Benign tumors are not cancerous because they do not spread to other areas of the body. Osteoid osteomas occur most frequently in the arm of leg. They are most common in those who are between 10 and 30 years old.

What are the symptoms of an osteoid osteoma?
Symptoms of osteoid osteoma depend on the location of the tumor. Symptoms of osteoid osteoma may include bone pain: hip pain, ankle pain, leg pain, knee pain, arm pain, shoulder pain, or elbow pain. An osteoid osteoma may also cause bone swelling.

How does the doctor treat an osteoid osteoma?
Treatment for osteoid osteoma may include surgery, radiofrequency ablation, or splints, which protect the bone from breaking.