Phytophotodermatitis: the other "lime" disease.

Phytophotodermatitis is a skin eruption that occurs after contact with photosensitizing compounds in plants and exposure to UV light. There are two common presentations of phytophotodermatitis. Acutely, erythema and vesiculation similar to a severe sunburn are noted. After resolution of the inflammation, the involved skin has marked hyperpigmentation. Many plants have been identified that contain furocoumarins (psoralens), including limes, lemons, and celery. We present a patient with an acute phototoxic eruption and hyperpigmentation after contact with limes during a beach vacation.