Conditions / Syndrome

Schaaf-Yang syndrome

info ยท Syndrome

A syndrome characterized by delayed psychomotor development, impaired intellectual development, hypotonia, and behavioral abnormalities that has_material_basis_in heterozygous mutation in the maternally imprinted gene MAGEL2 on chromosome 15q11.2.

Signs and symptoms

  • Intellectual disability
  • Global developmental delay
  • Autistic behavior
  • Polyphagia
  • Feeding difficulties
  • Poor suck
  • Weak cry
  • Hypogonadism
  • Neonatal hypotonia
  • Abnormality of the philtrum

Also known as: MAGEL2-related PWLS; MAGEL2-related Prader-Willi-like syndrome; PWLS; SHFYNG