Congenital diseases

In this brief section only three congenital cutaneous diseases are outlined. They include epitheliogenesis imperfecta, epidermolysis bullosa and hyperelastosis cutis. The first is an absence of epidermal structures, the second is a defect at the epidermal–dermal junction and the third is a disease of a component of the dermis. The clinical and histopathologic findings for each are described herein.