Ectodermal Dysplasia/skin Fragility Syndrome, also known as mcgrath syndrome, is related to ectodermal dysplasia and palmoplantar keratosis. An important gene associated with Ectodermal Dysplasia/skin Fragility Syndrome is PKP1 (Plakophilin 1). Affiliated tissues include skin and tongue, and related phenotypes are palmoplantar keratoderma and nail dystrophy