Abstract
Development of nevus spilus-like lentigines in zones previously affected by plaques of psoriasis has been described. Most cases have appeared following phototherapy; then it has been suggested that the mechanism involved could be an abnormal reaction to UV light. However, cases of multiple lentigines arising within resolving psoriatic in patients who had not received phototherapy or photochemotherapy have been described as a result of possible post-inflammatory hyperpigmentation. We report the case of patient who developed nevus spilus-like lentigines following therapy with topical calcipotriol on psoriatic plaques. We consider that the mechanism of production of lentigines is an unusual form of postinflammatory hyperpigmentation.
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