Nevus Depigmentosus Systematicus With Partial Yellow Scalp Hair Due to Selective Suppression of Eumelanogenesis

Abstract

We report a Japanese patient with congenital hypomelanosis with a segmental pattern on the left abdomen, whorl-like pattern on the back; mosaic pattern on the chest, right abdomen, and proximal extremities; and with yellow hair on a portion of the scalp. Chemical analysis of the yellow hair revealed decreased eumelanin content, whereas the pheomelanin content was normal.