A 22-year-old man presents to urgent care with a round, hyperpigmented patch on his arm. He reports that it’s “itchy,” and that it appeared soon after taking a second dose of a sulfonamide he’s taking for a persistent sinus infection. View the photo and consider what your diagnosis and next steps would be. Resolution of the case is described on the next page.
Read MoreA 30-Year-Old Woman with a ‘Burning’ Tongue
Case A 30-year-old woman visited urgent care complaining of a burning sensation on her tongue. At first, she had blamed it on a spicy meal, but the feeling didn’t go away and now she feels as though she isn’t able to taste food as usual. Looking back, she recalls that over a month ago she noticed a white plaque on her tongue. However, that had had disappeared within a day so she hadn’t thought much …
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