title: [Retronychias].
abstract: Retronychia usually affects young female (between 20 and 30 years old). It starts with the disruption of the longitudinal growth of the nail, because of a microtraumatic insult. Others diagnostic criteria: proximal nail plate rose upward proximal nailfold, pachyonychia and dyschromia, paronychia. Management consists of total nail avulsion.
authors.affiliation: CHU de Saint-Étienne, hôpital Nord, département d'onychologie, service de dermatologie, 420555 Saint-Étienne cedex 2, France; 1, rue General-Leclerc, 42100 St-Étienne, France. Electronic address: bruno.fouilloux@wanadoo.fr.
authors.forename: Bruno
authors.initials: B
authors.lastname: Fouilloux
mesh_terms: D000293:Adolescent; D000328:Adult; D005260:Female; D006801:Humans; D009262:Nails / Q000293:injuries; D009263:Nails, Ingrown / Q000209:etiology / Q000473:pathology* / Q000601:surgery*; D055815:Young Adult