Term Name: lissencephaly
Synonyms:
Definition: A congenital nervous system abnormality characterized by the absence of folds in the cerebral cortex and caused_by defective neuronal migration during the 12th to 24th weeks of gestation.
Ontology: Human Disease [DOID:0050453]   ( DOID:0050453 )

Relationships
is a type of: congenital nervous system abnormality
has subtype: lissencephaly 1 lissencephaly 3 lissencephaly 5 lissencephaly 7 with cerebellar hypoplasia lissencephaly 8 lissencephaly 9 with complex brainstem malformation lissencephaly 10 microlissencephaly Norman-Roberts syndrome pachygyria, microcephaly, developmental delay, and dysmorphic facies, with or without seizures X-linked lissencephaly 1 X-linked lissencephaly 2