Lichen aureus.

Lichen aureus is one of the rarest of the pigmented and purpuric dermatoses. The eruption consists of lichenoid papules and plaques with a golden to purplish color, and the histology reveals a dense and bandlike infiltrate hugging the epidermis. It consists of lymphocytes and histiocytes, often with extravasation of red cells. The eruption is asymptomatic and has a prolonged course. A case is presented which is unusual for its widespread localization, peculiar location, and rather dramatic response to topical therapy.