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Living with Ruvalcaba syndrome

An extremely rare syndrome with a small head, very short height, distinct facial features, and skeletal and developmental differences.

Understanding Ruvalcaba syndrome

Ruvalcaba syndrome is an extremely rare condition present from birth that affects the head, face, skeleton, and development.

It has been described in fewer than 10 people. Features include a small head size, very short stature, a narrow chest, underdeveloped genitals, and bone differences of the hands and spine. People also have intellectual and developmental delay. It begins in the newborn and infant period.

Signs & symptoms

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

  • Small head size (microcephaly)
  • Global developmental delay
  • Intellectual disability
  • Beaked nose and narrow mouth
  • Narrow chest and pigeon chest
  • Fused wrist bones and thumb set close to the wrist

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. Ask which tests can help

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

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
Is genetic testing available for this condition?
Which specialists should follow bones and the spine?
What therapies can support development?

Quick facts

Symptoms usually startNewborn and as an Infant
InheritanceAutosomal Dominant

GARD lists autosomal dominant inheritance, so one changed copy of a gene can be enough. It does not name a gene.

GeneticNeurological

Patient organizations

Rare-disease groups that can help

Source: NIH GARD · Ruvalcaba syndromeGARD ID 4748 · 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 Ruvalcaba syndrome.

Explore the Ruvalcaba syndrome blog

Explore research for Ruvalcaba syndrome

Explore actively recruiting Ruvalcaba syndrome studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Ruvalcaba 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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