Conditions / Nervous system

lissencephaly 8

info ยท Nervous system

A lissencephaly characterized by delayed psychomotor development, intellectual disability with poor or absent speech, early-onset refractory seizures, and hypotonia that has_material_basis_in homozygous or compound heterozygous mutation in the TMTC3 gene on ch

A lissencephaly characterized by delayed psychomotor development, intellectual disability with poor or absent speech, early-onset refractory seizures, and hypotonia that has_material_basis_in homozygous or compound heterozygous mutation in the TMTC3 gene on chromosome 12q21.32.

Signs and symptoms

  • Delayed fine motor development
  • Intellectual disability
  • Axial hypotonia
  • Delayed speech and language development
  • Global developmental delay
  • Delayed gross motor development
  • Delayed early-childhood social milestone development
  • Appendicular spasticity
  • Type II lissencephaly
  • Ventriculomegaly

Also known as: LIS8