[Congenital poikiloderma]

Poikiloderma is characterized by the syntopy of diffuse atrophy, leukomelanodermia and teleangiectasia. We differentiate between symptomatic, idiopathic and congenital forms. Congenital poikiloderma shows 3 decisive features: early appearance, familial occurrence, and various associated congenital malfomations. On account of distinctive features - such as the consanguinity of the parents, cataracts, leukoplakia, bullas, and verrucous keratoses - we can distinguish between 5 biotypes of congenital poikiloderma, which are named after their first observers: Rothmund's, Thomson's, Zinsser's, Brain's and Dowling's syndrome.