[A familial brain malformation syndrome with symptomatic hypernatremia].

A familial cerebral malformation combined with chronic hypernatremia is reported. We found three children of a Moroccan family with microcephaly and hypoplasia of the frontal brain. The frontal parts of the lateral ventricles were absent. Two of the children had a defect of the midline structures with fusion of the lateral ventricles similar to holoprosencephaly. Further clinical symptoms were generalized spasticity, delay of mental development and hypodipsia.