Alopecia and hyperpigmentation in a neonatal patient with lanosterol synthase gene deficiency and Spectrin alpha, non-erythrocytic 1 mutation.

Lanosterol synthase is required for cholesterol synthesis, and deficiencies have been associated with hypotrichosis as well as neuroectodermal syndromes including intellectual delay and epilepsy. Here, we report a case of lanosterol synthase deficiency in a 4-day-old patient who presented with alopecia and a previously unreported dermatologic manifestation of congenital localized hyperpigmentation.