Infantile epidermolytic ichthyosis with prominent maternal palmoplantar keratoderma

Dermatol Online J. 2016 Apr 18;22(4):13030/qt96w8m091.

Abstract

Epidermolytic Ichthyosis (EI) is a rare autosomal dominant genodermatosis. Although an inherited disorder, 50% of cases represent novel mutations. This disorder presents as a bullous disease in newborns progressing to a lifelong ichthyotic skin disorder. Other manifestations include palmoplantar keratoderma (PPK). EI results from mutations in the keratin 1 and keratin 10 genes. Phenotypic variability is seen in affected individuals based on the genotypic mutation. We present a mother and her newborn son with EI and prominent PPK in the mother, which also developed in the child at a few months of age. Genotype analysis was performed on the newborn child who was found to harbor a mutation in the keratin 1 gene. This family demonstrates the phenotypic expression of PPK associated with keratin 1 gene mutations and illustrates the importance of genotype-phenotypecorrelation in this disorder.

Publication types

  • Case Reports

MeSH terms

  • Adult
  • Female
  • Humans
  • Hyperkeratosis, Epidermolytic / diagnosis
  • Hyperkeratosis, Epidermolytic / genetics*
  • Hyperkeratosis, Epidermolytic / pathology
  • Infant, Newborn
  • Keratin-1 / genetics*
  • Keratoderma, Palmoplantar / diagnosis
  • Keratoderma, Palmoplantar / genetics*
  • Keratoderma, Palmoplantar / pathology
  • Mutation*

Substances

  • KRT1 protein, human
  • Keratin-1