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David Ahn, MD

David Ahn, MD, Nasir Aziz, MD, Amor Khachemoune, MD, FAAD, FACMS, Section Editor
A 67-year-old Ethiopian woman presented with a large black plaque surrounded by several smaller violaceous papules on her frontal hairline for 6 months. The largest plaque was tender and occasionally itchy. Surrounding this plaque were several smaller smooth, pigmented, round to annular papules. 
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