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Presentation
A 24-year-old woman visited her doctor about discoloration that developed on her back over the past 3 months. The patient had a history of acne and had been taking minocycline (50 mg twice daily) for the prior 6 months. On examination, patchy blue-gray hyperpigmentation with scattered, superimposed, darker gray macules were seen on the back.
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1% a) Erythema dyschromicum perstans
25% b) Minocycline drug-induced pigmentation
7% c) Postinflammatory hyperpigmentation
10% d) Tinea versicolor
Learnings
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