Dermatosis Papulosa Nigra are very common benign brown warty papules that appear in African Americans and other patients with dark skin tones, DPNs usually affect the cheeks, neck, and upper chest. DPNs are a type of seborrheic keratosis. Many patients request removal of DPNs, particularly when multiple or large, due to their unsightly appearance.
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Treatment through the use of either diathermy or laser treatment can provide effective results for patients with less risk of scarring than liquid nitrogen. A topical anaesthetic cream is used prior to precision cautery treatment, whereas laser cooling is usually sufficient to keep the treatment comfortable during laser treatment.
Immediately post treatment the lesions appear discoloured either darker or grey with the surrounding area appearing mildly inflamed. A soothing ointment is applied post treatment, then the lesion is left to fall off over the following days.