title: Lichen planopilaris epidemiology: a retrospective study of 80 cases.
abstract: BACKGROUND
  Lichen planopilaris is a frequent presentation of primary cicatricial alopecia. Scalp distribution characterizes the main clinical presentations: classic lichen planopilaris, frontal fibrosing alopecia and Graham-Little Piccardi-Lassueur Syndrome (GLPLS).
  
  
  OBJECTIVE
  Description of the clinical, dermoscopic and histopathological findings of Lichen planopilaris in public and private practices.
  
  
  METHODS
  A retrospective observational study was performed by reviewing medical records of patients with lichen planopilaris.
  
  
  RESULTS
  Eighty patients were included, 73 (91,25%) were female. Prototype II was seen in 53 (66,25%) patients. Classic lichen planopilaris was seen in 62,5% of the cases. Frontal fibrosing alopecia was seen in 31% of the patients and only one patient presented Graham-Little Piccardi-Lassueur Syndrome (GLPLS). Scalp lesions were scattered throughout the scalp in 47 (58,75%) of the patients, while 24 (30%) presented mainly central scalp lesions, 29 (36,25%) presented marginal lesions and only 4 (5%) patents had vertex lesions.
  
  
  CONCLUSIONS
  Clinical presentation of Lichen planopilaris varies. To recognize the heterogeneity of the clinical appearance in lichen planopilaris is important for differential diagnosis.
authors.affiliation: Universidade Federal do Paraná, Curitiba, PR, Brazil.
authors.forename: Vanessa Cristina
authors.initials: VC
authors.lastname: Soares
authors.affiliation: Universidade Federal do Paraná, Curitiba, PR, Brazil.
authors.forename: Fabiane
authors.initials: F
authors.lastname: Mulinari-Brenner
authors.affiliation: Universidade Federal do Paraná, Curitiba, PR, Brazil.
authors.forename: Tatiane Elen de
authors.initials: TE
authors.lastname: Souza
mesh_terms: D000505:Alopecia / Q000453:epidemiology* / Q000473:pathology; D001938:Brazil / Q000453:epidemiology; D046169:Dermoscopy; D005260:Female; D006801:Humans; D007642:Keratosis / Q000453:epidemiology / Q000473:pathology; D008010:Lichen Planus / Q000453:epidemiology* / Q000473:pathology; D008297:Male; D008499:Medical Records; D012189:Retrospective Studies; D012535:Scalp / Q000473:pathology