Figure 1: (a) Erythematous to violaceous hyperkeratotic papules and plaques arranged in a bilaterally symmetrical reticular pattern abdomen, bilateral hands and legs; (b) on the back and buttocks; (c) Erosions on oral mucosae; (d) Histopathological examination shows epidermal atrophy, hyperkeratosis, pigment incontinence and a band of lymphocytic infiltrate in the dermis [Hematoxylin and eosin stain (H&E); 40×]