Samuel William Becker first described this nevus in 1848.  It has also been referred to as “Nevoid Melanosis,” “Becker’s Melanosis,” and “Pigmented Hairy Epidermal Nevus.”  It is a late-onset epidermal nevus that usually is not present at birth but develops just before puberty and almost all patients are males. It presents as a hyperpigmented, hypertrichotic… Read more »