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Living with Leukoencephalopathy with mild cerebellar ataxia and white matter edema

An inherited brain condition with balance and coordination problems and headaches, that usually doesn't worsen much over time.

Understanding Leukoencephalopathy with mild cerebellar ataxia and white matter edema

Leukoencephalopathy with mild cerebellar ataxia and white matter edema (CLCN2-related leukoencephalopathy) is an inherited brain condition.

Neurological problems may appear anytime from childhood to adulthood and generally do not worsen much. Most people have trouble with coordination and balance but can walk without support, and many have frequent headaches. Children often have learning disabilities, while adults often have vision problems. Affected males are unable to father children.

Signs & symptoms

Symptoms vary from person to person. GARD lists these among the most common:

  • Poor balance when walking (gait ataxia)
  • Poor coordination of the limbs (limb ataxia)
  • Headache
  • Tremor during movement
  • Damage to the optic nerve
  • Loss of part of the field of vision

Not everyone has every symptom. GARD's list comes from the Human Phenotype Ontology.

Diagnosis

  1. Talk with your doctor

    Share the symptoms you've noticed, when they started and your family health history. Notes and photos can help.

  2. See a specialist

    Specialists who may be involved include brain and nervous system specialists and genetic specialists.

  3. Consider genetic testing

    Changes in CLCN2 are linked to this condition. Genetic testing and counseling can help confirm a diagnosis and explain what it means for your family.

  4. Connect with expert centers

    United Leukodystrophy Foundation may keep lists of experts for this condition.

Care & treatment

Care team
Brain and nervous system specialists (neurologists); Genetic specialists (geneticists)
Expert care
Expert lists: United Leukodystrophy Foundation
Treatment
GARD doesn't list specific treatments for this condition. Your care team will tailor care to your symptoms.
Research
Clinical trials and observational studies may be options. See the research section below.

General information, not medical advice. Your care team makes the decisions.

Everyday life

Living with a rare condition is easier with support.

  • Connect with United Leukodystrophy Foundation
  • Keep notes on symptoms, changes and questions for appointments
  • Ask about patient registries that help research
  • Look into financial aid and travel resources for care visits
Bring these questions to your next doctor visit
Would CLCN2 gene testing help our family?
How often should my vision be checked?
Should I talk with a specialist about fertility?

Quick facts

Symptoms usually startany time in life
InheritanceAutosomal Recessive
GenesCLCN2

It is caused by changes in the CLCN2 gene. A child inherits a changed copy of the gene from each parent (autosomal recessive).

GeneticNeurological

Also known as: brain white matter edema; clcn2 (chloride voltage-gated channel 2) related leukoencephalopathy; clcn2-related leukoencephalopathy; leukoencephalopathy with ataxia; leukoencephalopathy with white matter edema; lkpat

Patient organizations

Broader rare-disease groups

Source: NIH GARD · Leukoencephalopathy with mild cerebellar ataxia and white matter edemaGARD ID 17565 · GARD page updated September 2026 · Plain-language summary by Know Rare; editorial review pending. General information, not medical advice.

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