An asymptomatic erythematous scaly plaque on the left lower back
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A 61-year-old man was referred to our dermatology department for the evaluation of a single asymptomatic plaque on his left lower back that has been present for one year. The lesion began as an erythematous scaly plaque that slowly increased in size; he had been treated with topical antifungals and topical corticosteroid without any improvement. Clinical examination revealed a solitary erythematous scaly plaque measuring 2.5×5 cm in diameter. © 2013 Iranian Society of Dermatology.