Lichenification

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Lichenification is the thickening of skin (or epidermis) with the accentuation of the normal lines of the skin, giving rise to an appearance resembling a tree bark. It is commonly seen in chronic eczema (or atopic dermatitis), where there is constant scratching and rubbing of the skin and in lichen simplex chronicus. Thus, lichenification is often associated with pruritic disorders.