bone, joint, and muscle disorders
Bone Cysts
Aneurysmal bone cysts
Aneurysmal bone cysts usually develop before people reach age 25, and the cause is not known. These cysts are made up of multiple blood-filled sacs that are packed together. These cysts usually occur near the inside edges of the long bones (upper arm and thigh bones), but almost any bone may be affected. The cysts tend to grow slowly. Pain and swelling are common. The cyst may be present for a few weeks to a year before diagnosis. To diagnose aneurysmal bone cysts, doctors do X-rays and , and air that forms an injectable foam. More than one or two injections may be needed. Other formulations that contain alcohol have also been used. Radiation should be avoided when possible because cancerous tumors occasionally develop later. However, Radiation Therapy for Cancer may be the treatment of choice for cysts in the spine that cannot be treated surgically or injection and are putting pressure on the spinal cord. 