Overview
Dysostosis of genetic origin with limb anomaly as a major feature is a broad group of rare bone development disorders that are present from birth. In these conditions, certain bones — especially those in the arms, legs, hands, or feet — do not form properly during development in the womb. The word 'dysostosis' means abnormal bone formation, and in this group the limbs are the most noticeably affected part of the body. Depending on the specific type, a child may be born with missing fingers or toes, shortened or absent limb bones, fused bones, or unusually shaped hands and feet. Some forms may also involve bones in the skull, spine, or ribs, but the hallmark is that the limb abnormalities are the most prominent feature. Because this is a category that includes many different specific conditions rather than a single disease, the exact symptoms, severity, and genetic cause can vary widely from one person to another. Some individuals have mild differences that cause little functional limitation, while others may have significant challenges with movement, grip, or walking. Treatment is largely supportive and may include surgery, physical therapy, occupational therapy, and assistive devices. There is currently no cure that corrects the underlying genetic cause, but many people with these conditions lead fulfilling lives with appropriate medical and rehabilitative support. Early evaluation by a team of specialists is important to plan the best care.
Key symptoms:
Missing or shortened fingers or toesAbsent or underdeveloped arm or leg bonesFused fingers or toes (syndactyly)Extra fingers or toes (polydactyly)Split hand or split foot deformityAbnormally short limbsCurved or bowed long bonesLimited range of motion in jointsUnequal limb lengthsAbnormal shape of the hands or feetDifficulty gripping objectsDifficulty walking or standingClubfoot or other foot deformitiesUnderdeveloped nails
Variable
Can be inherited in different ways depending on the underlying gene
Neonatal
Begins at or shortly after birth (first 4 weeks)
Treatments
No FDA-approved treatments are currently listed for Dysostosis of genetic origin with limb anomaly as a major feature.
View clinical trials →Clinical Trials
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Specialists
View all specialists →No specialists are currently listed for Dysostosis of genetic origin with limb anomaly as a major feature.
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 Dysostosis of genetic origin with limb anomaly as a major feature.
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 specific type of dysostosis does my child have, and what gene is involved?,What surgeries or treatments might be needed, and when should they happen?,Will my child's condition change as they grow?,What therapies (physical, occupational) should we start now?,Is this condition inherited, and what is the chance of it occurring in future children?,Are there clinical trials or new treatments being studied for this condition?,What adaptive equipment or school accommodations should we consider?
Common questions about Dysostosis of genetic origin with limb anomaly as a major feature
What is Dysostosis of genetic origin with limb anomaly as a major feature?
Dysostosis of genetic origin with limb anomaly as a major feature is a broad group of rare bone development disorders that are present from birth. In these conditions, certain bones — especially those in the arms, legs, hands, or feet — do not form properly during development in the womb. The word 'dysostosis' means abnormal bone formation, and in this group the limbs are the most noticeably affected part of the body. Depending on the specific type, a child may be born with missing fingers or toes, shortened or absent limb bones, fused bones, or unusually shaped hands and feet. Some forms may
At what age does Dysostosis of genetic origin with limb anomaly as a major feature typically begin?
Typical onset of Dysostosis of genetic origin with limb anomaly as a major feature is neonatal. Age of onset can vary across affected individuals.