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GTR Home > Conditions/Phenotypes > Weaver syndrome

Summary

Excerpted from the GeneReview: EZH2-Related Overgrowth
EZH2-related overgrowth is a variable overgrowth syndrome characterized by tall stature, macrocephaly, variable intellect (ranging from normal intellect to severe intellectual disability), characteristic facial appearance, and a range of associated clinical features including advanced bone age, poor coordination, soft, doughy skin, camptodactyly of the fingers and/or toes, umbilical hernia, abnormal tone, and hoarse, low cry in infancy. Brain MRI has identified abnormalities in a few individuals with EZH2-related overgrowth. Neuroblastoma occurs at a slightly increased frequency in individuals with a heterozygous EZH2 pathogenic variant, but data are insufficient to determine absolute risk. There is currently no evidence that additional malignancies (including hematologic malignancies) occur with increased frequency, though a few have been reported.

Genes See tests for all associated and related genes

  • Also known as: ENX-1, ENX1, EZH2b, KMT6, KMT6A, WVS, WVS2, EZH2
    Summary: enhancer of zeste 2 polycomb repressive complex 2 subunit

Clinical features

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