Solitary purpuric plaque: clinical and dermoscopic evolution of lichen aureus

Abstract

Lichen aureus is a pigmented purpuric dermatosis that typically presents with the acute onset of a solitary, unilateral, purple to rust-yellow colored lichenoid patch or plaque on lower extremities1. We presented a 53-year-old woman consulted for the management of asymptomatic lesions. The dermatological examination revealed a purpuric infiltrated placard on the anterior surface of the left leg, dermoscopy and skin biopsy confirmed diagnostic of lichen aureus. Lichen aureus is a rare entity whose diagnosis remains difficult from where the interest of the dermoscopy to retain the diagnosis.