[Septo-optic dysplasia (De Morsier's syndrome). About one case discovered during the pregnancy].

The authors report a case of septo-optic dysplasia discovered during the pregnancy without another abnormality. It's a rare cerebral abnormality that is characterized by an absence of septum pellucidum associated to a hypoplasia of ways and optic chiasm to variable degrees. Discovery is often made for adulthood. Future is extremely wide. It is determined with the arisen to different degrees of incapacity of Pituitary gland, psychomotor delay of variable intensity with mental deficiency, a visual confusion, and a confusion of the regulation of the temperature.