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Living with Ramon syndrome

A rare genetic condition with painless facial swelling (cherubism), seizures, gum overgrowth, and intellectual disability.

Understanding Ramon syndrome

Ramon syndrome is a rare genetic bone condition with painless swelling of the lower face (cherubism), seizures, gum overgrowth, and intellectual disability.

The facial swelling runs from the jaw to the lower edge of the eye sockets on both sides. The overgrown gums can cover the teeth. Other features can include extra body hair, slow growth, juvenile arthritis, and eye differences. GARD lists onset in infancy.

Signs & symptoms

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

  • Full cheeks from painless jaw swelling (cherubism)
  • Seizures
  • Overgrown gums (gingival fibromatosis)
  • Intellectual disability
  • Late tooth eruption
  • Extra body hair

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, genetic specialists and gum, teeth and mouth specialists.

  3. Consider genetic testing

    Changes in ELMO2 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); Gum, teeth and mouth specialists (odontologists)
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
Would genetic testing for the ELMO2 gene help our family?
How can seizures and gum overgrowth be managed?
How often should eyes and jaw bones be checked?

Quick facts

Symptoms usually startInfant
InheritanceAutosomal Recessive
GenesELMO2

This condition is caused by changes in the ELMO2 gene. A child inherits a changed copy of the gene from each parent (autosomal recessive).

GeneticNeurological

Also known as: cherubism-gingival fibromatosis-intellectual disability syndrome; cherubism, gingival fibromatosis, epilepsy, mental deficiency, hypertrichosis, and stunted growth

Patient organizations

Rare-disease groups that can help

Source: NIH GARD · Ramon syndromeGARD ID 7523 · 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 Ramon syndrome.

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Explore research for Ramon syndrome

Explore actively recruiting Ramon syndrome studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Ramon 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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