lichen simplex Flashcards
What is lichen simplex?
Lichen simplex is a chronic itchy skin disorder characterized by well-demarcated, erythematous patches and plaques of thickened leathery skin.
What are other names for lichen simplex?
Lichen simplex is also known as neurodermatitis, lichen simplex chronicus, and neurodermatitis circumscripta.
How does lichen simplex appear on the skin?
It appears as well-demarcated patches and plaques with thickened, leathery skin and variable erythema.
What is the primary cause of lichen simplex
Lichen simplex results from a chronic “itch-scratch cycle,” where repetitive scratching and excoriation lead to thickened patches.
What conditions can lead to secondary lichen simplex?
Secondary lichen simplex can follow underlying itchy dermatoses like atopic dermatitis, psoriasis, scabies, or xerosis.
