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Living with Overgrowth syndrome with 2q37 translocation

A rare condition with a long, slim body and many bone and joint differences, often noticed in newborns and infants.

Understanding Overgrowth syndrome with 2q37 translocation

Overgrowth syndrome with 2q37 translocation is a rare overgrowth condition that affects the skeleton.

People with this condition have a long, slim body build and several bone differences. These include curved spine (scoliosis), large big toes, and long, thin fingers and toes. Signs are usually noticed in the newborn and infant period. Some people also have a widened aorta (the main blood vessel from the heart) and a belly-button hernia.

Signs & symptoms

Symptoms vary from person to person. GARD describes these features:

  • Long, slim body build
  • Curved spine (scoliosis)
  • Large big toes (macrodactyly)
  • Long, thin fingers and toes (arachnodactyly)
  • Feet that gradually turn outward (valgus deformity)
  • Bowed lower leg bones (tibiae)

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 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
Bone and joint specialists (orthopedists or orthopedic surgeons); 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 Chromosome Disorder Outreach
  • 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
Should my child have a heart check for the aorta, since widening has been reported?
What follow-up is needed for the spine and foot changes?
Would genetic testing or counseling help explain this condition in our family?

Quick facts

Symptoms usually startNewborn and as an Infant

Changes in the genes (also called variants) cause this condition. GARD doesn't list a specific gene.

Genetic

Patient organizations

Broader rare-disease groups

Source: NIH GARD · Overgrowth syndrome with 2q37 translocationGARD ID 22032 · 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 Overgrowth syndrome with 2q37 translocation.

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