Contributor: Gordon K. Klintworth
Autosomal dominant dystrophic epidermolysis bullosa is a type of epidermolysis bullosa  It is an inherited disorder with an autosomal dominant mode of inheritance. Vesicles form immediately deep to the lamina densa. The lesions heal with scars. One variety of autosomal dominant dystrophic epidermolysis bullosa is the Bart type of dystrophic epidermolysis bullosa [epidermolysis bullosa dystrophica - Bart type], which is caused by a mutation in the COL7A1 gene, which codes for the alpha 1 chains of  collagen type VII