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

A rare genetic disease characterized by the presence of multiple café-au-lait macules and elevated rates of sister chromatid exchange demonstrated on cytogenetic testing. Pre- and postnatal growth deficiency with short stature, microcephaly, mild developmental delay, cardiomyopathy, and symptomatic gastro-esophageal reflux have also been described, while malar rash is typically absent.

Therapeutic area
Rare Disease
Rarity
Rare
Prevalence
~100k patients (est.)
MONDO
MONDO:0034991

Overview

A rare genetic disease characterized by the presence of multiple café-au-lait macules and elevated rates of sister chromatid exchange demonstrated on cytogenetic testing. Pre- and postnatal growth deficiency with short stature, microcephaly, mild developmental delay, cardiomyopathy, and symptomatic gastro-esophageal reflux have also been described, while malar rash is typically absent.

Content last reviewed: 2026-06