ichthyosis

Ichthyosis is a family of genetic skin disorders characterized by dry, thickened, scaly skin. The more than 20 types of ichthyosis range in severity of symptoms, outward appearance, underlying genetic cause and mode of inheritance (e.g., dominant, recessive, autosomal or X-linked). Ichthyosis comes from the Greek ἰχθύς ichthys, literally 'fish', since dry, scaly skin is the defining feature of all forms of ichthyosis.The severity of symptoms can vary enormously, from the mildest, most common, types ...