This rare, ubiquitous neurocutaneous disorder is inherited in an autosomal
recessive fashion. Its primary clinical manifestations are congenital ichth
yosis,spastic diplegia or tetraplegia,and mental retardation. The causative
biochemical defect has been identified as a deficiency of the enzyme fatty
aldehyde dehydrogenase, a component of fatty alcohol:NAD(+) oxidoreductase
. We present a case report of an affected 3.5 year old white girl to give a
n overview of the pre- and postnatal diagnostic procedures as well as of th
erapeutic options.