What is lichen simplex chronicus?

➢ manifests as roughening of the skin ➢ It is a response to local repetitive trauma, usually from rubbing or scratching. ➢ Nodular forms exist that are referred to as prurigo nodularis. ➢ The lesions often are raised, erythematous, and scaly and can be mistaken for keratinocytic neoplasms. ➢ can be superimposed on and mask another (often pruritic) dermatosis. ➢ It is therefore important to rule out an underlying cause while recognizing that the lesion may be entirely trauma-related.