title: Proceedings: Unilateral systematized hypochromic nevus.
mesh_terms: D002675:Child, Preschool; D006801:Humans; D008297:Male; D008544:Melanocytes; D009030:Mosaicism; D009506:Nevus / Q000235:genetics*; D010858:Pigmentation; D012878:Skin Neoplasms / Q000235:genetics*