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Living with Aicardi syndrome

A condition that occurs almost only in females, with a missing or underdeveloped brain connection, infant seizures, and eye defects.

Understanding Aicardi syndrome

Aicardi syndrome is a disorder that occurs almost only in females and has three main features that occur together.

The three main features are a missing or underdeveloped corpus callosum (the tissue connecting the two halves of the brain), seizures that start in infancy (infantile spasms), and eye defects called chorioretinal lacunae. Many people have other brain differences and a small head. Most have moderate to severe developmental delay and intellectual disability.

Signs & symptoms

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

  • Missing or small cerebellum
  • Small head size (microcephaly)
  • Eye problems, such as small eyes
  • Abnormal pigment in the retina
  • Spine bone differences (block or butterfly vertebrae)
  • Cleft ribs

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, cancer specialists, eye disease specialists and genetic 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); Cancer specialists (oncologists); Eye disease specialists (ophthalmologists); Genetic specialists (geneticists)
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 Aicardi Syndrome 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
How can infantile spasms and seizures be managed?
How often should my child's eyes be checked?
Is genetic counseling useful for our family?

Quick facts

Symptoms usually startNewborn
InheritanceX-Linked

GARD lists X-linked inheritance for this condition. It doesn't describe a specific cause.

GeneticNeurological

Also known as: agenesis of corpus callosum with chorioretinal abnormality; aic; aic - aicardi syndrome; aicardi syndrome, x-linked dominant; aicardi's syndrome; aicardi’s syndrome

Patient organizations

Source: NIH GARD · Aicardi syndromeGARD ID 5764 · 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 Aicardi syndrome.

Explore the Aicardi syndrome blog

Explore research for Aicardi syndrome

Explore actively recruiting Aicardi syndrome studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Aicardi syndrome 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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Powered by HealthSpark, our AI chat helper · Study information from ClinicalTrials.gov · Eligibility is confirmed by the study team.

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