A 16-year-old boy developed a dark brown lesion a few months prior. Let’s diagnose.


A 16-year-old boy visited his doctor about a lesion that developed on his back a few months prior. On examination, a dark brown plaque with outlying associated lighter and smaller macules and patches were seen on the left back. The patient had no history of dermatological conditions and was not on any medications.

What’s the diagnosis?

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