Which is not a feature of Netheon Syndrome?

This autosomal recessive disorder is characterized by ichthyosis (usually ichthyosis linearis circumflexa but occasionally the lamellar or congenital ichthyosiform erythroderma types), trichorrhexis invaginata and other hair shaft anomalies, and atopic diathesis. Mutations in the gene SPINK 5, which encodes a serine protease inhibitor, have been identified in patients with Netheon syndrome.