Erythroderma, Congenital, with Palmoplantar Keratoderma, Hypotrichosis, and Hyper-Ige, also known as severe dermatitis-multiple allergies-metabolic wasting syndrome, is related to palmoplantar keratosis and hypotrichosis. An important gene associated with Erythroderma, Congenital, with Palmoplantar Keratoderma, Hypotrichosis, and Hyper-Ige is DSG1 (Desmoglein 1), and among its related pathways/superpathways are Programmed Cell Death and Keratinization. Affiliated tissues include skin and brain, and related phenotypes are failure to thrive and global developmental delay