Palmoplantar Keratoderma, Epidermolytic, 1, also known as epidermolytic palmoplantar keratoderma, is related to palmoplantar keratoderma, nonepidermolytic, focal or diffuse and pseudomembranous conjunctivitis. An important gene associated with Palmoplantar Keratoderma, Epidermolytic, 1 is KRT9 (Keratin 9), and among its related pathways/superpathways are Nervous system development and Cytoskeletal Signaling. The drugs Immunoglobulins and Antibodies have been mentioned in the context of this disorder. Affiliated tissues include skin and breast, and related phenotypes are palmoplantar hyperkeratosis and epidermal hyperkeratosis