Intense pulsed light (IPL) therapy using noncoherent broad-spectrum light has been reported to be effective for hair removal, and also for treating superficial pigmented lesions like ephelides and solar lentigines. We report complete regression of a pigmented melanocytic nevus, histologically confirmed, after hair removal treatment with IPL. The use of lasers and IPL is a common procedure used by dermatologists and even other professions for the treatment of cosmetically troubling skin conditions. The main advantage of such treatment is a reduction of surgical scars, thus producing a favorable cosmetic outcome, but a major limitation is that histopathologic diagnosis is not usually obtained prior to treatment. Such devices should be carefully used in patients with potentially dangerous melanocytic lesions. We also review the recent literature regarding inadequate treatment of melanocytic lesions with lasers.

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The clinical, dermoscopic, and histologic features of the melanocytic nevi studied suggest the existence of a highly characteristic form of tumor regression characterized by very rapid regression and the involvement of a cytotoxic mechanism.

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