[ENT expression of hypohidrotic ectodermal dysplasia].

Hypohidrotic Ectodermal Dysplasia (HED) is a rare recesive genetic disease linked to chromosome X whose main characteristic is the reduction of sweat glands, leading to a deficient sweating and an increase in body temperature. In HED mainly the ectodermal structures are involved such, as epidermis and its anexes (hair and nails), although non-ectodermal tissue may also become involved. Otolaryngologicalmanifestations are related to hypoplasia of the mucous glands of the upper aerodigestive tract, as chronic infections, like rhinitis, pharyngitis, bronchitis and otitis, and also epistaxis, dysphagia, anodontia and, ozena, among others. A case of a young adult male affected with HED who is referred to the Otolaryngology Departament with a history of chronic pharyngitis and ozena, is presented and the literature reviewed.