Eruptive lentiginosis in resolving psoriatic plaques

Eruptive lentiginosis confined to areas of resolving psoriatic plaques (ELRP) is a rare occurrence. Several previous reports described this phenomenon after the use of different treatment modalities to resolve psoriatic plaques, including topical, ultraviolet light, and biologic therapies. We present a case of ELRP after treatment with ustekinumab. We completed a review of the literature synthesizing all available reports describing lentiginous macules at the site of resolving psoriatic plaques to describe the patient population, treatments, and clinical characteristics associated with this entity.