Overview
X-linked non-progressive cerebellar ataxia is a rare genetic condition that affects coordination and balance. It is sometimes also called X-linked congenital cerebellar hypoplasia or X-linked cerebellar ataxia. The condition is caused by changes in genes located on the X chromosome, which means it primarily affects boys and men, while females are usually carriers who may have mild or no symptoms. The cerebellum is the part of the brain responsible for coordinating movement, balance, and fine motor skills. In this condition, the cerebellum does not develop fully or function properly, leading to problems with coordination (ataxia) from early in life. Importantly, the word 'non-progressive' means that the condition does not get worse over time, which distinguishes it from many other forms of ataxia. Key symptoms include unsteady walking, poor coordination of hand and arm movements, difficulty with balance, and sometimes mild intellectual disability or speech difficulties. Symptoms are usually noticed in infancy or early childhood when a child is learning to walk and move. There is currently no cure for this condition, and treatment focuses on supportive therapies such as physical therapy, occupational therapy, and speech therapy to help individuals maximize their abilities and independence. Some individuals may also benefit from assistive devices for mobility.
Key symptoms:
Unsteady or wobbly walkingPoor balanceDifficulty coordinating hand and arm movementsDelayed motor milestones such as sitting and walkingSlurred or slow speechTremor or shaking during purposeful movementsLow muscle tone in infancyMild intellectual disability in some casesDifficulty with fine motor tasks like writing or buttoning clothesAbnormal eye movements such as nystagmusWide-based gait
Clinical phenotype terms (16)— hover any for plain English
X-linked recessive
Carried on the X chromosome; typically affects males more than females
Infantile
Begins in infancy, roughly 1 month to 2 years old
Treatments
No FDA-approved treatments are currently listed for X-linked non progressive cerebellar ataxia.
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Specialists
View all specialists →No specialists are currently listed for X-linked non progressive cerebellar ataxia.
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 X-linked non progressive cerebellar ataxia.
Community
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Caregiver Resources
NORD Caregiver Resources
Support, advocacy, and financial assistance for caregivers of rare disease patients.
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.What specific gene change is causing my child's condition, and what does that mean for their outlook?,How often should my child have physical therapy, occupational therapy, and speech therapy?,Are there any clinical trials or new treatments being studied for this condition?,What school accommodations should I request for my child?,Should other family members be tested to see if they are carriers?,Will my child be able to walk independently, and what can we do to support that?,How will this condition affect my child's learning and intellectual development?
Common questions about X-linked non progressive cerebellar ataxia
What is X-linked non progressive cerebellar ataxia?
X-linked non-progressive cerebellar ataxia is a rare genetic condition that affects coordination and balance. It is sometimes also called X-linked congenital cerebellar hypoplasia or X-linked cerebellar ataxia. The condition is caused by changes in genes located on the X chromosome, which means it primarily affects boys and men, while females are usually carriers who may have mild or no symptoms. The cerebellum is the part of the brain responsible for coordinating movement, balance, and fine motor skills. In this condition, the cerebellum does not develop fully or function properly, leading t
How is X-linked non progressive cerebellar ataxia inherited?
X-linked non progressive cerebellar ataxia follows a x-linked recessive inheritance pattern. Genetic counseling can help families understand recurrence risk and testing options.
At what age does X-linked non progressive cerebellar ataxia typically begin?
Typical onset of X-linked non progressive cerebellar ataxia is infantile. Age of onset can vary across affected individuals.