[Bourneville's tuberous sclerosis: neurological manifestations and skin anomalies].

A follow up of 14 cases of tuberous sclerosis is presented. Cutaneous signs, epileptic seizures and developmental disabilities were recorded over a period ranging between 2 and 25 years from the onset of symptoms. A correlation can be established between the time of appearance of epilepsy and the degree of mental retardation. Antiepileptic treatment does not seem to prevent developmental disability.