Overview
Brachymorphism-onychodysplasia-dysphalangism syndrome (also known as BOD syndrome) is an extremely rare genetic condition that affects the development of bones, nails, and other body structures. The name describes its three main features: brachymorphism (short stature or short body proportions), onychodysplasia (abnormal nail development), and dysphalangism (abnormal finger and toe bones). People with this condition are typically shorter than average and may have unusually short fingers and toes. The nails may be small, underdeveloped, or abnormally shaped. Some individuals also have distinctive facial features, including a broad or flat nose and a round face. Mild intellectual disability has been reported in some cases but is not always present. Because BOD syndrome is so rare, with only a handful of cases described in the medical literature, the full range of symptoms and the best approaches to treatment are not completely understood. There is currently no cure for this condition. Treatment focuses on managing individual symptoms and may include orthopedic care for bone and joint issues, occupational therapy to help with hand function, and regular developmental assessments in children. Genetic counseling is recommended for affected families to understand the inheritance pattern and recurrence risk.
Also known as:
Key symptoms:
Short statureShort fingers and toesAbnormal or underdeveloped nailsBroad or flat noseRound faceAbnormal bone development in the hands and feetMild intellectual disability in some casesWide-set eyesShort neckDelayed growthJoint stiffness or limited range of motion
Clinical phenotype terms (37)— hover any for plain English
Autosomal recessive
Passed on when both parents carry the same gene change; often skips generations
Neonatal
Begins at or shortly after birth (first 4 weeks)
FDA & Trial Timeline
1 eventNewcastle-upon-Tyne Hospitals NHS Trust — NA
Data sourced from FDA regulatory filings and ClinicalTrials.gov. Updated periodically.
Treatments
No FDA-approved treatments are currently listed for Brachymorphism-onychodysplasia-dysphalangism syndrome.
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Specialists
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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
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Caregiver Resources
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Social Security Disability
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Questions for your doctor
Bring these to your next appointment
- Q1.What specific symptoms should I watch for as my child grows?,Are there any genetic tests that could confirm this diagnosis?,What therapies would help improve hand function and daily skills?,How often should growth and development be monitored?,Is there a risk of this condition occurring in future children?,Are there any specialists we should see regularly?,Are there any research studies or registries we can participate in?
Common questions about Brachymorphism-onychodysplasia-dysphalangism syndrome
What is Brachymorphism-onychodysplasia-dysphalangism syndrome?
Brachymorphism-onychodysplasia-dysphalangism syndrome (also known as BOD syndrome) is an extremely rare genetic condition that affects the development of bones, nails, and other body structures. The name describes its three main features: brachymorphism (short stature or short body proportions), onychodysplasia (abnormal nail development), and dysphalangism (abnormal finger and toe bones). People with this condition are typically shorter than average and may have unusually short fingers and toes. The nails may be small, underdeveloped, or abnormally shaped. Some individuals also have distincti
How is Brachymorphism-onychodysplasia-dysphalangism syndrome inherited?
Brachymorphism-onychodysplasia-dysphalangism syndrome follows a autosomal recessive inheritance pattern. Genetic counseling can help families understand recurrence risk and testing options.
At what age does Brachymorphism-onychodysplasia-dysphalangism syndrome typically begin?
Typical onset of Brachymorphism-onychodysplasia-dysphalangism syndrome is neonatal. Age of onset can vary across affected individuals.