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Living with Filippi syndrome

A rare genetic syndrome present from birth that affects the head, face and limbs, with a small head, webbed fingers or toes, and intellectual disability.

Understanding Filippi syndrome

Filippi syndrome is a rare genetic syndrome present from birth that affects the development of the head, face, and limbs.

Signs include a small head (microcephaly), webbed fingers and toes (syndactyly), intellectual disability, growth delay, and distinctive facial features. Other features can include vision problems, extra fingers or toes, and seizures. Because it is very rare, it is not known how the condition changes over time.

Signs & symptoms

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

  • Small head (microcephaly)
  • Webbed or fused fingers or toes
  • Intellectual disability
  • Delayed development and growth
  • Speech and language problems
  • Distinctive facial features

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 bone and joint specialists, brain and nervous system specialists and genetic specialists.

  3. Consider genetic testing

    Changes in CKAP2L 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
Bone and joint specialists (orthopedists or orthopedic surgeons); 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 FACES: The National Craniofacial Association
  • 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 CKAP2L confirm the diagnosis?
What therapies can help development and speech?
Which specialists should follow my child's care?

Quick facts

Symptoms usually startNewborn and as an Infant
InheritanceAutosomal Recessive
GenesCKAP2L

A genetic change in the CKAP2L gene causes it. It is autosomal recessive, which means a child inherits a changed copy of the gene from each parent.

GeneticNeurological

Also known as: flpis; type 1 syndactyly-microcephaly-intellectual disability syndrome; type 1 syndactyly, microcephaly, intellectual disability syndrome

Patient organizations

Source: NIH GARD · Filippi syndromeGARD ID 62 · 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 Filippi syndrome.

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Explore research for Filippi syndrome

Explore actively recruiting Filippi syndrome studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Filippi 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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