A 13-year-old white girl presented with a 3-month history of several slightly itchy, 5- to 8-mm in diameter, smooth, brown-grayish macules on her trunk and arms (Fig 1, A), previously diagnosed as lichen planus pigmentosus on clinical grounds and treated with topical steroids and tacrolimus without significant improvement.
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Errichetti et al. (2017) studied this question.
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