Skip to content
knowrare
HealthSignal
Your condition community

Living with Fowler syndrome

A rare genetic brain condition that begins before birth, with unusual brain development, stiff joints, and reduced movement.

Understanding Fowler syndrome

Fowler syndrome is a rare genetic neurological disorder that begins before birth and affects brain development.

Features include hydranencephaly (very little brain tissue replaced by fluid), unusual blood vessels in the brain and retina, extra amniotic fluid, and little movement before birth with stiff joints (arthrogryposis). In the few reported children who lived beyond infancy, there was severe intellectual and neurologic disability, seizures, a small head, and no functional movement.

Signs & symptoms

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

  • Hydranencephaly (fluid in place of brain tissue)
  • Stiff joints (joint contractures)
  • Club foot
  • Too much fluid in the brain (hydrocephalus)
  • Enlarged brain fluid spaces (ventriculomegaly)
  • Reduced movement before birth

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 FLVCR2 are linked to this condition. Genetic testing and counseling can help confirm a diagnosis and explain what it means for your family.

Care & treatment

Care team
Brain and nervous system specialists (neurologists); Genetic specialists (geneticists)
Expert care
Ask about multidisciplinary care centers for rare conditions
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 rare disease patient organizations for support
  • 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
Can genetic testing for FLVCR2 be done for our family?
What is the chance of this in a future pregnancy?
What supportive care options are available?

Quick facts

Symptoms usually startduring Pregnancy and as a Newborn
InheritanceAutosomal Recessive
GenesFLVCR2

Changes in the FLVCR2 gene cause it. It is autosomal recessive, which means a child inherits a changed copy of the gene from each parent.

GeneticNeurological

Also known as: cerebral proliferative glomeruloid vasculopathy; encephaloclastic proliferative vasculopathy; fowler vasculopaty; hydranencephaly, fowler type; hydrocephaly/hydranencephaly due to cerebral vasculopathy; proliferative vasculopathy and hydranencephaly/hydrocephaly

Patient organizations

Rare-disease groups that can help

Source: NIH GARD · Fowler syndromeGARD ID 17138 · 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 Fowler syndrome.

Explore the Fowler syndrome blog

Explore research for Fowler syndrome

Explore actively recruiting Fowler syndrome studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Fowler 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

Powered by HealthSpark, our AI chat helper

I can help you find recruiting Fowler syndrome 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.

Get Signals for Fowler syndrome

Stay in the loop with community stories and updates from medical researchers.

HealthStoryfor Fowler syndrome

Create a living journal that talks back

HealthStory evolves private journaling with a living AI journal that talks back and asks thoughtful questions, helping you capture your Fowler syndrome experiences more deeply and prepare for better conversations with your doctors and care team.

Start your journal

Your journal is private. Sharing your story publicly is a separate choice, made with Share your story above.