DefinitionThis section has been translated automatically.
Whitish or silvery, central firmly adherent scaling that covers a maculo-papular efflorescence completely or to a large extent. The oblade-shaped cover scale is based on a parakeratotic keratinization mechanism. Characteristic for pityriasis lichenoides chronica, but also for exudative psoriasis vulgaris.
Prof. Dr. med. Peter Altmeyer