title: Woolly-hair nevus: a case report and study by scanning electron microscopy.
abstract: Woolly-hair is a congenital defect that produces a localized patch of lightly colored, curly scalp hair. Scanning electron microscopy of the abnormal hairs demonstrates twisting of the hair shaft and abnormal cuticle formation.
mesh_terms: D002675:Child, Preschool; D005260:Female; D006197:Hair / Q000002:abnormalities* / Q000648:ultrastructure; D006801:Humans; D009506:Nevus / Q000648:ultrastructure*; D012878:Skin Neoplasms / Q000648:ultrastructure*