Home Page
References OMIM Gene GeneReviews HGMD HGNC
GENATLAS PHENOTYPE
last update : 08-03-2022
Symbol DDHNS
Location 7q31.1
Name developmental delay, hypotonia, and peripheral neuropathy or spasticity
Corresponding gene NRCAM
Main clinical features
  • global developmental delay (GDD) and cognitive impairment with dysmorphic features, hydrocephalus
  • intellectual disability, hypotonia, ataxia, peripheral neuropathy or spasticity, and visual and hearing abnormalities
  • brain imaging identified a thin corpus callosum with partially shifted vermis, ventriculomegaly, periventricular leukomalacia, and delayed myelination, while some individuals had normal brain imaging
  • Genetic determination autosomal recessive
    Function/system disorder ear
    eye
    neurology
    Type disease
    Remark(s)