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Living with Osteofibrous dysplasia

A rare, non-cancerous bone tumor, most often in the shin bone of children and teens, that sometimes causes swelling, pain, or bowing.

Understanding Osteofibrous dysplasia

Osteofibrous dysplasia is a rare, non-cancerous (benign) tumor that affects the long bones, usually in children and adolescents.

It is most often in the middle of the tibia (shin bone), but can also affect the fibula or arm bones. Many people have no symptoms, and it is found when an X-ray is done for another reason. When symptoms occur, they can include swelling or pain at the tumor, a break in the weakened bone, or bowing of the leg. GARD lists infancy and childhood as the usual onset.

Signs & symptoms

Symptoms vary, and many people have none. GARD lists this among the most common:

  • Bone fracture at the weakened spot (pathologic fracture)
  • Swelling or pain at the tumor
  • Bowing of the leg

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

    Specialists who may be involved include bone and joint specialists and genetic specialists.

  3. Consider genetic testing

    Changes in MET are linked to this condition. Genetic testing and counseling can help confirm a diagnosis and explain what it means for your family.

Care & treatment

Care team
Bone and joint specialists (orthopedists or orthopedic surgeons); Genetic specialists (geneticists)
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
Does the tumor need treatment, or can it just be watched?
What activity limits help prevent a fracture?
Does the MET gene matter for my family?

Quick facts

Symptoms usually startInfant and as a Child
InheritanceAutosomal Dominant
GenesMET

GARD says the cause is unknown. It lists the MET gene and autosomal dominant inheritance, meaning one changed copy of a gene can be enough.

Genetic

Also known as: cortical fibrous dysplasia; kempson-campanacci lesion; ofd; osfd; ossifying fibroma of long bones; osteofibrous dysplasia of bone

Patient organizations

Rare-disease groups that can help

Source: NIH GARD · Osteofibrous dysplasiaGARD ID 10887 · 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 Osteofibrous dysplasia.

Explore the Osteofibrous dysplasia blog

Explore research for Osteofibrous dysplasia

Explore actively recruiting Osteofibrous dysplasia studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Osteofibrous dysplasia 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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