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Severe intellectual disability-short stature-behavioral abnormalities-facial dysmorphism syndrome

ORPHA:391307· ICD-10 Q87.8

Definition

A rare, genetic, syndromic intellectual disability syndrome characterized by severe intellectual disability with limited or absent speech and language, short stature, acquired microcephaly, kyphoscoliosis or scoliosis, and behavioral disturbances that include hyperactivity, stereotypy and aggressiveness. Facial dysmorphism, that typically includes sloping forehead, mild synophrys, deep-set eyes, strabismus, anteverted large ears, prominent nose and dental malposition, is also characteristic.

Prevalence
<1 / 1 000 000
Inheritance
Autosomal recessive
Age of onset
Infancy, Neonatal