Prader-Willi Syndrome

  • Harold Chen
Living reference work entry


Prader-Willi syndrome is a neurogenetic disorder characterized by hypotonia and feeding difficulties in infancy, followed by hyperphagia, hypogonadism, mental retardation, and short stature. It was the first recognized microdeletion syndrome identified with high-resolution chromosome analysis, the first recognized human genomic imprinting disorder, and the first recognized disorder resulting from uniparental disomy. The incidence of Prader-Willi syndrome is approximately 1/10,000–1/15,000 individuals.


Autism Spectrum Disorder Recurrence Risk Angelman Syndrome Uniparental Disomy Skin Picking 
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© Springer Science+Business Media New York 2016

Authors and Affiliations

  1. 1.Medical GeneticsShriners Hospitals for ChildrenShreveportUSA
  2. 2.Perinatal and Clinical Genetics, Department of PediatricsLSU Health Sciences CenterShreveportUSA

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