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Living with Chondroblastoma

A benign bone tumor that usually forms at the ends of long bones, most often in children and young adults.

Understanding Chondroblastoma

Chondroblastoma is a benign (noncancerous) bone tumor that usually arises from the end (epiphysis) of long bones.

It forms cartilage-like tissue and is made up of specific cell types seen under the microscope. It occurs most often in children and young adults and rarely spreads. In aggressive cases, a change in the 8q21 chromosome region is seen.

Signs & symptoms

GARD doesn't list specific symptoms for this condition yet.

Not everyone has every symptom. GARD's list comes from the Human Phenotype Ontology.

Diagnosis

  1. Talk with your doctor

    Share the symptoms you've noticed, when they started and your family health history. Notes and photos can help.

  2. See a specialist

    Your doctor may refer you to a specialist who knows rare conditions.

  3. Ask which tests can help

    Your care team will decide which exams and tests can confirm the diagnosis.

Care & treatment

Care team
A doctor familiar with rare conditions, plus specialists as needed
Expert care
Ask about multidisciplinary care centers for rare conditions
Treatment
GARD doesn't list specific treatments for this condition. Your care team will tailor care to your symptoms.
Research
Clinical trials and observational studies may be options. See the research section below.

General information, not medical advice. Your care team makes the decisions.

Everyday life

Living with a rare condition is easier with support.

  • Connect with rare disease patient organizations for support
  • Keep notes on symptoms, changes and questions for appointments
  • Ask about patient registries that help research
  • Look into financial aid and travel resources for care visits
Bring these questions to your next doctor visit
Which bone is affected, and what imaging will track the tumor?
What treatment options are there for a benign bone tumor?
How often will follow-up checks be needed?

Quick facts

GARD doesn't describe a cause for this condition yet, beyond a chromosome change seen in aggressive cases.

Also known as: chondroblastoma (disease); chondroblastoma morphology; chondroblastoma of bone; chondromatous giant cell tumor; codman's tumor

Patient organizations

Rare-disease groups that can help

Source: NIH GARD · ChondroblastomaGARD ID 6047 · GARD page updated September 2026 · Plain-language summary by Know Rare; editorial review pending. General information, not medical advice.

You are more than your diagnosis

Perspectives from people navigating life with Chondroblastoma.

Explore the Chondroblastoma blog

Explore research for Chondroblastoma

Explore actively recruiting Chondroblastoma studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Chondroblastoma with HealthSpark. Share your city to explore research near you.

  • Recruiting studies from ClinicalTrials.gov
  • Share your city to look for research near you
  • Eligibility is confirmed by the study team

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Powered by HealthSpark, our AI chat helper · Study information from ClinicalTrials.gov · Eligibility is confirmed by the study team.

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