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Living with Schizencephaly

A rare brain difference present from birth in which abnormal slits or clefts form in the brain, which can cause seizures and developmental delay.

Understanding Schizencephaly

Schizencephaly is a rare brain malformation, present from birth, in which abnormal slits or clefts form in the cerebral hemispheres.

Signs may include developmental delay, seizures, and problems with brain-to-spinal-cord communication. Some people also have a small head, hydrocephalus (extra pressure in the brain), intellectual disability, paralysis, or low muscle tone. Severity depends on how much clefting there is and on other brain differences.

Signs & symptoms

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

  • Seizures
  • Global developmental delay
  • Intellectual disability
  • Muscle stiffness (spasticity)
  • Weakness on one side of the body
  • Crossed eyes (strabismus)

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, eye disease specialists, genetic specialists and seizure and epilepsy specialists.

  3. Ask which tests can help

    Your care team will decide which exams and tests can confirm the diagnosis.

  4. Connect with expert centers

    Epilepsy Foundation may keep lists of experts for this condition.

Care & treatment

Care team
Brain and nervous system specialists (neurologists); Eye disease specialists (ophthalmologists); Genetic specialists (geneticists); Seizure and epilepsy specialists (epileptologist)
Expert care
Expert lists: Epilepsy 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 Child Neurology Foundation and other patient organizations
  • 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
Which areas of my child's brain are affected?
What treatments can help with seizures and muscle stiffness?
Is genetic testing helpful in our case?

Quick facts

Symptoms usually startany time in life
InheritanceAutosomal Dominant, Autosomal Recessive

GARD says the exact cause is unknown but linked to many genetic and non-genetic factors. It lists autosomal dominant and autosomal recessive inheritance.

GeneticNeurological

Also known as: familial schizencephaly, emx2-related; familial schizencephaly, six3-related

Patient organizations

Source: NIH GARD · SchizencephalyGARD ID 166 · GARD page updated September 2026 · Plain-language summary by Know Rare; editorial review pending. General information, not medical advice.

You are more than your diagnosis

Perspectives from people navigating life with Schizencephaly.

Explore the Schizencephaly blog

Explore research for Schizencephaly

Explore actively recruiting Schizencephaly studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Schizencephaly with HealthSpark. Share your city to explore research near you.

  • Recruiting studies from ClinicalTrials.gov
  • Share your city to look for research near you
  • Eligibility is confirmed by the study team

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I can help you find recruiting Schizencephaly studies. Enter a ZIP code, address or city below and I'll look within 50 miles.

Powered by HealthSpark, our AI chat helper · Study information from ClinicalTrials.gov · Eligibility is confirmed by the study team.

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