Palmoplantar Keratoderma, Nagashima Type, is also known as keratoderma, palmoplantar, nagashima type. An important gene associated with Palmoplantar Keratoderma, Nagashima Type is SERPINB7 (Serpin Family B Member 7). Affiliated tissues include skin, and related phenotypes are hyperhidrosis and palmoplantar keratoderma