Morphological alterations in two siblings with autosomal recessive congenital ichthyosis associated with CYP4F22 mutations

Autosomal recessive congenital ichthyosis (ARCI) caused by mutations in CYP4F22 is very rare. CyP4F22, a protein of the cytochrome‐P450 family 4, encodes an epidermal ω‐hydroxylase decisive in the formation of acylceramides, which is hypothesized to be crucial for skin‐barrier function. We report a girl with consanguineous parents presenting as collodion baby with contractures of the great joints and palmoplantar hyperlinearity. In the course of...