Dermatológia pre prax 1/2017

Photodermatoses

Photodermatoses are a skin disease caused by an increased sensitivity of the skin towards the sunlight. We divide them into 4 main categories: 1) immunologically mediated photodermatosis, that are polymorphic light eruption, actinic prurigo, hydroa vacciniforme, solar urticaria and chronic actinic dermatitis, 2) drug-induced and chemically-induced photosensitivity, that includes phototoxic and fotoallergic reactions, porphyria, 3) photoaggravated conditions, 4) defective DNA repairs disorders. Over a very wide range of diseases, their therapy is similar, it means strict photoprotection against UVB and UVA radiation and appropriate clothing.

Keywords: photodermatoses, polymorphous light eruption, actinic prurigo, hydroa vacciniforme, solar urticaria, chronic actinic dermatitis, phototoxic reactions, photoallergic reaction, UV radiation, photoprotection