Also known as: Exostosis.
What is osteochondroma?
An osteochondroma is a common non-cancerous tumor of bone that typically grows near the growth plate, the area of cartilage near the ends of the long bones (knee and upper arm).
The tumor stops growing when puberty is completed and is usually found in boys.
What causes osteochondroma?
The cause is unknown but may be related to a genetic mutation.
What are the symptoms of osteochondroma?
Most osteochondromas do not cause any concerning problems. A child may notice a bump or have pain. If large, a tumor may press on nerves or blood vessels causing pain, numbness, tingling or changes in blood flow of the affected limb.
What are osteochondroma care options?
Most osteochondromas don't require treatment, only requiring monitoring to make sure that they don’t become problematic over time. Surgical removal is only necessary if the osteochondroma grows large enough to cause complications.
Reviewed by: Jack Wolfsdorf, MD, FAAP
This page was last updated on: January 14, 2021 10:37 AM
Learn more about
Multiple Hereditary Exostoses
Multiple hereditary exostoses is a genetic condition in which an individual develops multiple bone tumors on the ends of the bones, often at the ends of long bones or on the hips or shoulder blades.
A tumor that forms on or in the bones might be an chondroma.