“…Congenital ectodermal dysplasia (CED) is a familial disease, which gener ally affects males and is attributed to an autosomal dominant or an x-linked recessive trait [2,3,7,11,12], It is characterized by numerous anomalies of the epidermis and appendages resulting from faulty evolution of the epiblastic layer of the blastoderm [5,6,8,10,13]; these give rise to the classical triad of hypotrichosis, anodontia and anhidrosis. According to the traditional classification, there are two types of CED: (1) anhidrotic, in which the eccrine sweat glands are absent or functionally impaired; (2) hidrotic, in which the eccrine sweat glands are normal.…”