title: Acquired ciliary circumscribed grey hair (ACCG).
abstract: Grey-haired areas usually occur due to aging or inheritance. A case is described of abrupt occurrence of a focal circumscribed grey-hair in the eyebrow region (a single hair) in a 27-year-old woman. The phenomenon was named acquired ciliary circumscribed grey-hair (ACCG). Qualitative and semiquantitative findings were obtained by microanalytical studies. In addition to morphological differences from control hair, the ACCG hair showed a high percentage of sulfur (99.8%) and absence of oligoelements.
authors.affiliation: Department of Dermatologia, Hospital Universitario Puerta del Mar, Cadiz, Spain.
authors.forename: A G
authors.initials: AG
authors.lastname: Romero
authors.forename: J C
authors.initials: JC
authors.lastname: Calatayud
mesh_terms: D000328:Adult; D005138:Eyebrows / Q000737:chemistry* / Q000503:physiopathology / Q000648:ultrastructure*; D005260:Female; D006200:Hair Color / Q000502:physiology*; D006201:Hair Diseases / Q000473:pathology* / Q000503:physiopathology; D006801:Humans; D010859:Pigmentation Disorders / Q000473:pathology* / Q000503:physiopathology