Preferred Label : Lissencephaly 4 with microcephaly;
Symbol : LIS4;
CISMeF acronym : LIS4;
Type : Phenotype, molecular basis known;
Description : Lissencephaly-4 is an autosomal recessive neurodevelopmental disorder characterized
by lissencephaly, severe brain atrophy, extreme microcephaly (head circumference of
more than 10 standard deviations (SD) below the mean), and profound mental retardation.
It has also been referred to as 'microlissencephaly' (summary by Bakircioglu et al.,
2011 and Alkuraya et al., 2011). For a general phenotypic description and a discussion
of genetic heterogeneity of lissencephaly, see LIS1 (607432).;
Inheritance : Autosomal recessive;
Molecular basis : Caused by mutation in the homolog of the A. nidulans Nude 1 gene (NDE1, 609449.0001);