Ectodermal Dysplasia 8, Hair/tooth/nail Type, is also known as fried's tooth and nail syndrome. An important gene associated with Ectodermal Dysplasia 8, Hair/tooth/nail Type is ECTD8 (Ectodermal Dysplasia 8, Hair/Tooth/Nail Type). Affiliated tissues include skin, and related phenotypes are sparse scalp hair and aplasia/hypoplasia of the eyebrow