Lichen planus pigmentosus is a rare condition. Lichen planus pigmentosus (LPP), erythema dyschromicum perstans (EDP) and ashy dermatosis (AD) are types of acquired macular hyperpigmentation. Treatments for LPP, EDP and AD have had limited success. We present a case of lichen planus pigmentosus successfully treated with dapsone.
A 46 year female patient of Pakistani origin presented with light grey brown macular pigmentation involving her face, neck, forearms of 3 year duration. She failed treatments with topical steroids, oral steroids,tacrolimus ,hydroxychloroquine, colchicine. She was commenced on oral dapsone with significant improvement of pigmentation within 6 months.
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