[Sjögren-Larsson syndrome: a novel mutation in a Moroccan child].

Sjögren-Larsson syndrome is a very rare inherited neurocutaneous disorder caused by a deficiency of microsomal enzyme fatty aldehyde dehydrogenase (FALDH). The authors report a case of typical Sjögren-Larsson syndrome in a 7-year-old Moroccan child who presented with classical symptoms (congenital ichthyosis, mental retardation, and spastic paraparesis) and epilepsy. The genetic study revealed a new mutation in the FALDH gene mapped to chromosome 17, consisting in a G109A substitution in exon 2.