Overview
Microcephaly-brachydactyly-kyphoscoliosis syndrome is an extremely rare genetic condition that affects multiple body systems. The name describes its three main features: microcephaly (a smaller-than-expected head size, which often reflects reduced brain growth), brachydactyly (unusually short fingers and toes), and kyphoscoliosis (an abnormal curvature of the spine that combines both a forward rounding and a sideways curve). People with this syndrome typically also experience intellectual disability, short stature, and distinctive facial features. The condition is present from birth, and the combination of skeletal and neurological problems can significantly affect a child's development and daily functioning. Because this syndrome is so rare, with only a handful of cases described in the medical literature, there is limited information about its full range of symptoms and long-term outcomes. There is currently no cure or disease-specific treatment. Management focuses on addressing individual symptoms through supportive care, which may include physical therapy, orthopedic interventions for spinal problems, special education services, and regular monitoring of growth and development. A team of specialists working together is usually needed to provide the best care for affected individuals.
Also known as:
Key symptoms:
Smaller than normal head sizeShort fingers and toesAbnormal curvature of the spineIntellectual disabilityShort statureLow muscle toneDelayed developmental milestonesDistinctive facial featuresLow birth weightSeizures in some casesLimited joint movementSpeech and language delays
Clinical phenotype terms (19)— 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)
Treatments
No FDA-approved treatments are currently listed for Microcephaly-brachydactyly-kyphoscoliosis syndrome.
View clinical trials →Clinical Trials
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Specialists
View all specialists →No specialists are currently listed for Microcephaly-brachydactyly-kyphoscoliosis syndrome.
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 Microcephaly-brachydactyly-kyphoscoliosis syndrome.
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.How severe is my child's condition compared to other reported cases?,What therapies should we start right away to support development?,How often should we monitor the spinal curvature, and when might surgery be needed?,Is genetic testing available that could confirm the diagnosis or help with family planning?,Are there any clinical trials or research studies we could participate in?,What educational supports should we request for our child at school?,What is the expected long-term outlook for my child's independence and quality of life?
Common questions about Microcephaly-brachydactyly-kyphoscoliosis syndrome
What is Microcephaly-brachydactyly-kyphoscoliosis syndrome?
Microcephaly-brachydactyly-kyphoscoliosis syndrome is an extremely rare genetic condition that affects multiple body systems. The name describes its three main features: microcephaly (a smaller-than-expected head size, which often reflects reduced brain growth), brachydactyly (unusually short fingers and toes), and kyphoscoliosis (an abnormal curvature of the spine that combines both a forward rounding and a sideways curve). People with this syndrome typically also experience intellectual disability, short stature, and distinctive facial features. The condition is present from birth, and the c
How is Microcephaly-brachydactyly-kyphoscoliosis syndrome inherited?
Microcephaly-brachydactyly-kyphoscoliosis syndrome follows a autosomal recessive inheritance pattern. Genetic counseling can help families understand recurrence risk and testing options.
At what age does Microcephaly-brachydactyly-kyphoscoliosis syndrome typically begin?
Typical onset of Microcephaly-brachydactyly-kyphoscoliosis syndrome is neonatal. Age of onset can vary across affected individuals.