[Sebaceous linear nevus syndrome with hemimegalencephaly. Report of a case].

The case of a 7-year-old girl, born from a monochorionic biamniotic pregnancy (with healthy male twin) is presented. The patient showed a congenital brown-yellowish, raised, rough and oval-shaped nevic neoformation of the right temporo-zygomatic region. At 28 days of age she had a right hemiclonic status epilepticus, and from the 8th month of life she presented right sided partial motor seizures.