Woman has a 3-month history of back discoloration. Let’s diagnose.

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.

What’s the diagnosis?

Use the Differential Builder in VisualDx to help you.

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