Epidermolysis Bullosa with Congenital Localized Absence of Skin and Deformity of Nails, is also known as epidermolysis bullosa dystrophica, bart type. An important gene associated with Epidermolysis Bullosa with Congenital Localized Absence of Skin and Deformity of Nails is COL7A1 (Collagen Type VII Alpha 1 Chain). Affiliated tissues include skin and lung.