title: [Vulvar lichen planus in children].
abstract: BACKGROUND
  Lichen planus is less common in children about in adults and mostly affects the skin.
  
  
  METHODS
  A 9-year-old girl was referred for a purplish blue and violaceous, unilateral and asymptomatic vulvar lesion noted 4 months earlier and stable. Histopathologic examination showed typical features of lichen planus. She responded well and rapidly with topical steroids.
  
  
  CONCLUSIONS
  We report the first case of vulvar lichen planus in a little girl. Mucosal involvement is uncommon in children with lichen planus and genital localisation is extremely rare. Vulvar lichen sclerosis is the principal differential diagnosis. The risk of vulvar synechia and development of vulvar carcinomas warrants regular long-term follow-up.
authors.affiliation: Service de Dermatologie, Hôpital Necker-Enfants Malades, 147, rue de Sèvres, 75015 Paris.
authors.forename: H
authors.initials: H
authors.lastname: Hatuel
authors.forename: S
authors.initials: S
authors.lastname: Fraitag
authors.forename: E
authors.initials: E
authors.lastname: Thibaud
authors.forename: D
authors.initials: D
authors.lastname: Hamel
mesh_terms: D002648:Child; D005260:Female; D006801:Humans; D007724:Vulvar Lichen Sclerosus / Q000473:pathology*