Overview
Osteosclerotic metaphyseal dysplasia is a very rare inherited bone disorder that affects the way bones grow and develop. The word 'osteosclerotic' means the bones become abnormally dense and hard, and 'metaphyseal dysplasia' refers to problems in the growing regions near the ends of long bones (called the metaphyses). This condition is also sometimes referred to by its Orphanet designation or described within the broader group of sclerosing bone dysplasias. In this condition, the bones — particularly in the arms, legs, and spine — develop increased density and structural abnormalities. This can lead to bone pain, increased risk of fractures despite the bones appearing dense, and in some cases compression of nearby nerves or blood vessels. The skull and facial bones may also be affected, which can sometimes cause problems with vision or hearing if nerves become compressed. Treatment is currently focused on managing symptoms rather than curing the underlying cause. This may include pain management, orthopedic interventions for fractures or bone deformities, and monitoring for nerve compression. Because this condition is extremely rare, most care is coordinated through specialists in metabolic bone disease, clinical genetics, and orthopedics. Research into the genetic causes and potential targeted therapies is ongoing, but no specific approved drug therapy currently exists for this exact condition.
Key symptoms:
Abnormally dense or hard bones visible on X-rayBone pain, especially in the arms and legsIncreased risk of bone fracturesAbnormal bone shape near the ends of long bonesShort stature or slowed growthPossible hearing loss if skull bones compress hearing nervesPossible vision problems if eye socket bones are affectedSpinal abnormalities or back painJoint stiffness or limited range of motion
Autosomal recessive
Passed on when both parents carry the same gene change; often skips generations
Childhood
Begins in childhood, roughly ages 1 to 12
Treatments
No FDA-approved treatments are currently listed for Osteosclerotic metaphyseal dysplasia.
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Specialists
View all specialists →No specialists are currently listed for Osteosclerotic metaphyseal dysplasia.
Treatment Centers
8 centersBaylor College of Medicine Rare Disease Center ↗
Baylor College of Medicine
📍 Houston, TX
🏥 NORDStanford Medicine Rare Disease Center ↗
Stanford Medicine
📍 Stanford, CA
🔬 UDNNIH Clinical Center Undiagnosed Diseases Program ↗
National Institutes of Health
📍 Bethesda, MD
🔬 UDNUCLA UDN Clinical Site ↗
UCLA Health
📍 Los Angeles, CA
🔬 UDNBaylor College of Medicine UDN Clinical Site ↗
Baylor College of Medicine
📍 Houston, TX
🔬 UDNHarvard/MGH UDN Clinical Site ↗
Massachusetts General Hospital
📍 Boston, MA
🏥 NORDMayo Clinic Center for Individualized Medicine ↗
Mayo Clinic
📍 Rochester, MN
👤 Mayo Clinic Center for Individualized Medicine
🏥 NORDUCLA Rare Disease Day Program ↗
UCLA Health
📍 Los Angeles, CA
Travel Grants
No travel grants are currently matched to Osteosclerotic metaphyseal dysplasia.
Community
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Caregiver Resources
NORD Caregiver Resources
Support, advocacy, and financial assistance for caregivers of rare disease patients.
Mental Health Support
Rare disease caregiving can be isolating. Connect with counseling and peer support.
Family & Caregiver Grants
Financial assistance programs specifically for caregivers of rare disease patients.
Social Security Disability
Learn how rare disease patients may qualify for SSDI/SSI benefits.
Questions for your doctor
Bring these to your next appointment
- Q1.What genetic testing do you recommend to confirm the diagnosis and identify the specific gene involved?,How often should my bones be monitored with imaging, and what are we looking for?,What activities should be avoided to reduce the risk of fractures?,Are there any clinical trials or research studies I or my child could participate in?,What signs of nerve compression should I watch for at home, and when should I go to the emergency room?,Should other family members be tested for this condition?,Are there any patient registries or support groups for this condition that you recommend?
Common questions about Osteosclerotic metaphyseal dysplasia
What is Osteosclerotic metaphyseal dysplasia?
Osteosclerotic metaphyseal dysplasia is a very rare inherited bone disorder that affects the way bones grow and develop. The word 'osteosclerotic' means the bones become abnormally dense and hard, and 'metaphyseal dysplasia' refers to problems in the growing regions near the ends of long bones (called the metaphyses). This condition is also sometimes referred to by its Orphanet designation or described within the broader group of sclerosing bone dysplasias. In this condition, the bones — particularly in the arms, legs, and spine — develop increased density and structural abnormalities. This c
How is Osteosclerotic metaphyseal dysplasia inherited?
Osteosclerotic metaphyseal dysplasia follows a autosomal recessive inheritance pattern. Genetic counseling can help families understand recurrence risk and testing options.
At what age does Osteosclerotic metaphyseal dysplasia typically begin?
Typical onset of Osteosclerotic metaphyseal dysplasia is childhood. Age of onset can vary across affected individuals.