Lichen simplex, sometimes called lichen simplex chronicus or neurodermatitis, presents as a localised demarcated plaque, usually with scaling, excoriations and lichenification (increased skin markings and thickened skin) on the surface. The lesion is particularly itchy. Common sites are the calf, elbow, shin, behind the neck, and genitalia (vulva or scrotum).1 2 Plaques are usually greater than 5 cm in diameter.3
This is a companion discussion topic for the original article at https://patient.info/doctor/lichen-simplex