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Living with Intrauterine growth restriction-congenital multiple café-au-lait macules-increased sister chromatid exchange syndrome

A rare genetic condition with slow growth before and after birth, many light-brown skin patches, and a small head.

Understanding Intrauterine growth restriction-congenital multiple café-au-lait macules-increased sister chromatid exchange syndrome

Intrauterine growth restriction-congenital multiple cafe-au-lait macules-increased sister chromatid exchange syndrome is a rare genetic disease with many light-brown skin patches (cafe-au-lait macules).

A chromosome test shows high rates of sister chromatid exchange. Other described features are slow growth before and after birth, short stature, a small head, mild developmental delay, heart muscle disease, and acid reflux. A butterfly-shaped facial rash is typically absent. It begins during pregnancy or in the newborn period.

Signs & symptoms

GARD doesn't list a symptom list for this condition. Its summary describes:

  • Many light-brown skin patches (cafe-au-lait macules)
  • Slow growth before and after birth
  • Short stature
  • Small head (microcephaly)
  • Mild developmental delay
  • Heart muscle disease (cardiomyopathy)

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 genetic specialists and skin, hair, and nail specialists.

  3. Ask which tests can help

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

Care & treatment

Care team
Genetic specialists (geneticists); Skin, hair, and nail specialists (dermatologists)
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 Children's Skin Disease Foundation
  • 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
Which chromosome test shows the increased exchange?
How often should the heart be checked?
How will growth and development be monitored?

Quick facts

Symptoms usually startduring Pregnancy and as a Newborn
InheritanceAutosomal Recessive

GARD says it is a genetic disease inherited in an autosomal recessive pattern, meaning a child inherits a changed copy of the gene from each parent. It doesn't name a gene.

GeneticSkin

Also known as: intrauterine growth restriction, congenital multiple café au lait macules, increased sister chromatid exchange syndrome

Patient organizations

Broader rare-disease groups

Source: NIH GARD · Intrauterine growth restriction-congenital multiple café-au-lait macules-increased sister chromatid exchange syndromeGARD ID 17949 · GARD page updated September 2026 · Plain-language summary by Know Rare; editorial review pending. General information, not medical advice.

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