A man aged 20 years presented for assessment of a lesion on his back and to discuss treatment options for the hairs growing within. He reported the lesion had been present as long as he could remember. No changes in the shape, color or size of the lesion were described. He reported that his father had a similar lesion on his back. The patient had no notable medical or surgical history.Physical exam showed an irregularly shaped hyperpigmented patch with overlying hypertrichosis. Dermoscopic examination revealed an evenly pigmented brown patch with a benign network pattern in the lesion’s left upper quadrant.
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