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Giant cell tumor of bone is a rare, fast-growing noncancerous tumor. It most often grows in adults between ages 20 and 40 when skeletal bone growth is done. It is slightly more common in women.

Facing a chronic illness alone can be hard for you and your family. If you have fears or concerns, talk with people close to you. Talk with your healthcare team and other people with kidney disease. Ask for support or help right away when you need it. Ask your healthcare team about support groups in your area for you and family members. Contact national organizations that offer expert advice and education.

Kidney stones are made up of chemical crystals that separate out from urine. These crystals clump together to make stones. They may stay in the kidney or move into the urinary tract.

Tumors at the base of the skull—behind the eyes and nose, between the ears, or near the pituitary gland—can be difficult to treat. Special surgical skills and expertise are required to protect the brain, as well as critical nerves and blood vessels in the brain, neck, and spinal cord.