Overview
Microcephaly-cervical spine fusion anomalies syndrome is an extremely rare genetic condition that combines an unusually small head (microcephaly) with abnormal fusion of the bones in the neck (cervical vertebrae). This syndrome is sometimes also referred to as microcephaly with cervical spine fusion or may overlap with descriptions of Klippel-Feil-like anomalies combined with microcephaly. Children born with this condition typically have a noticeably smaller head circumference than expected for their age, which often reflects reduced brain growth. The fused neck bones can limit the range of motion in the neck and may cause a short neck appearance. Beyond the two main features, affected individuals may also have intellectual disability of varying degrees, short stature, and other skeletal abnormalities. Some patients may have facial differences and neurological problems related to the small brain size. Because this syndrome is so rare, the full range of symptoms is not completely understood, and new features may be recognized as more cases are described. There is currently no cure for this condition. Treatment focuses on managing symptoms and supporting development. This may include physical therapy, occupational therapy, special education services, and orthopedic care for spinal issues. Regular monitoring by multiple specialists is important to address complications as they arise and to optimize quality of life.
Key symptoms:
Unusually small head size (microcephaly)Fused bones in the neck (cervical spine fusion)Limited neck movementShort neckIntellectual disabilityDevelopmental delaysShort statureLow hairline at the back of the headFacial differencesNeurological problemsPossible hearing difficultiesSkeletal abnormalities beyond the neck
Clinical phenotype terms (26)— 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-cervical spine fusion anomalies syndrome.
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Specialists
View all specialists →No specialists are currently listed for Microcephaly-cervical spine fusion anomalies 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-cervical spine fusion anomalies syndrome.
Community
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Caregiver Resources
NORD Caregiver Resources
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Mental Health Support
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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 microcephaly, and what does this mean for their development?,Which cervical vertebrae are fused, and is there any risk to the spinal cord?,Are there any activities or movements we should avoid to protect the neck?,What therapies do you recommend, and how often should they occur?,Should we pursue genetic testing, and what might the results tell us?,How often should imaging of the spine be repeated?,Are there any clinical studies or research programs we could participate in?
Common questions about Microcephaly-cervical spine fusion anomalies syndrome
What is Microcephaly-cervical spine fusion anomalies syndrome?
Microcephaly-cervical spine fusion anomalies syndrome is an extremely rare genetic condition that combines an unusually small head (microcephaly) with abnormal fusion of the bones in the neck (cervical vertebrae). This syndrome is sometimes also referred to as microcephaly with cervical spine fusion or may overlap with descriptions of Klippel-Feil-like anomalies combined with microcephaly. Children born with this condition typically have a noticeably smaller head circumference than expected for their age, which often reflects reduced brain growth. The fused neck bones can limit the range of mo
How is Microcephaly-cervical spine fusion anomalies syndrome inherited?
Microcephaly-cervical spine fusion anomalies syndrome follows a autosomal recessive inheritance pattern. Genetic counseling can help families understand recurrence risk and testing options.
At what age does Microcephaly-cervical spine fusion anomalies syndrome typically begin?
Typical onset of Microcephaly-cervical spine fusion anomalies syndrome is neonatal. Age of onset can vary across affected individuals.