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A 61-year-old man presented with a reddish brown rash in his groin; he had had the rash for more than 30 years and described it as mildly pruritic. After the rash had failed to clear with the use of numerous prescription and over-the-counter antifungal agents, topical corticosteroid preparations of various strengths, emollients, and home remedies, the patient finally attributed the condition to staining of his skin from dark-colored underclothes. Physical examination revealed a diffuse, brownish, scaly plaque in bilateral intracrural areas of his groin, with well-demarcated sparing of the occluded portions of the intertriginous creases (Panel A). The plaque did . . . [Full Text of this Article] |
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