Term Name:	periventricular nodular heterotopia 7
Synonyms:
Definition:	A periventricular nodular heterotopia characterized by abnormal neuronal migration during brain development resulting in delayed psychomotor development and intellectual disability; some patients develop seizures that has_material_basis_in heterozygous mutation in the NEDD4L gene on chromosome 18q21.
Ontology:	Human Disease [DOID:0061270]   ( DOID:0061270 )