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GTR Home > Conditions/Phenotypes > Williams syndrome

Summary

Excerpted from the GeneReview: Williams Syndrome
Williams syndrome (WS) is characterized by developmental delay, intellectual disability (usually mild), a specific cognitive profile, unique personality characteristics, cardiovascular disease (supravalvar aortic stenosis, peripheral pulmonary stenosis, hypertension), connective tissue abnormalities, growth deficiency, endocrine abnormalities (early puberty, hypercalcemia, hypercalciuria, hypothyroidism), and distinctive facies. Hypotonia and hyperextensible joints can result in delayed attainment of motor milestones. Feeding difficulties often lead to poor weight gain in infancy.

Genes See tests for all associated and related genes

  • Also known as: ADCL1, SVAS, WBS, WS, ELN
    Summary: elastin

  • Also known as: CHREBP, MIO, MLX, MONDOB, WBSCR14, WS-bHLH, bHLHd14, MLXIPL
    Summary: MLX interacting protein like

Clinical features

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