| Lissencephaly syndrome, Norman-Roberts type is the association of lissencephaly type I with craniofacial anomalies (severe microcephaly, a low sloping forehead, a broad and prominent nasal bridge and widely set eyes) and postnatal growth retardation. Severe intellectual deficit, spasticity and epilepsy are also present. Mutations in the RELN gene (7q22) have been identified in some patients. Transmission is autosomal recessive. |
