Rud syndrome revisited: ichthyosis, mental retardation, epilepsy and hypogonadism.

Rud syndrome is a rare disorder of childhood characterized by ichthyosis, mental retardation, epilepsy and hypogonadism. The authors report a family with this autosomal recessive disorder, review the clinical and dermatopathological findings, and contrast Rud syndrome with the other major neuro-ichthyosiform dermatoses.