Lichenification

Excerpt

Basic skin lesions divide into primary, secondary, and special types. The term lichenification is classed as a secondary skin lesion wherein the characteristic features of skin thickening, hyperpigmentation, and exaggerated skin lines are noted. Lichenification can be further divided into primary and secondary types wherein primary lichenification signifies lichen simplex chronicus, also known as neurodermatitis circumscripta. On the other hand, secondary lichenification occurs in atopic dermatitis, infective eczematous dermatoses, psoriasis, psoriasiform dermatosis, xerosis, pityriasis rubra pilaris, porokeratosis, vegetative growths, anxiety, and obsessive-compulsive disorders.