Isolated straight hair nevus in a White child

Abstract

We report a 6‐month‐old girl born with a fronto‐parietal patch of hair straighter than the remainder of the scalp hairs. We took a biopsy to rule out a congenital melanocytic nevus. We concluded after additional scanning electron microscopy study of the hair shafts that the lesion corresponds to a possible local mosaicism causing an isolated straight hair nevus phenotype.

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