title: Nail lichen striatus: report of seven cases and review of the literature.
abstract: BACKGROUND
  Nail involvement in lichen striatus (LS) is rare and has not been documented extensively.
  
  
  OBJECTIVE
  This study describes the clinical and histological features, response to treatment, and follow-up in seven patients with nail LS.
  
  
  METHODS
  We reviewed seven cases of nail LS between 2006 and 2012 at the Dermatology Department, Yeouido St Mary's Hospital, Seoul, South Korea.
  
  
  RESULTS
  The median patient age was 11 years (range: 4-33 years), and the female:male ratio was 3:4. All patients had both typical skin lesions and nail abnormalities. In these cases, LS usually involved a single digit (n = 5). The most common nail change was longitudinal fissuring (n = 4). We actively treated both skin and nail lesions from the time of diagnosis. Most nail lesions resolved within a mean of four months of the initiation of treatment.
  
  
  CONCLUSIONS
  Nail involvement in LS is rare; this case series highlights the associated nail changes. We emphasize that early accurate diagnosis and treatment may be beneficial in reducing nail deformities in patients with nail involvement.
authors.affiliation: Department of Dermatology, College of Medicine, The Catholic University of Korea, Seoul, South Korea.
authors.forename: Miri
authors.initials: M
authors.lastname: Kim
authors.affiliation: Department of Dermatology, College of Medicine, The Catholic University of Korea, Seoul, South Korea.
authors.forename: Hwa Young
authors.initials: HY
authors.lastname: Jung
authors.affiliation: Department of Dermatology, College of Medicine, The Catholic University of Korea, Seoul, South Korea.
authors.forename: Young Sun
authors.initials: YS
authors.lastname: Eun
authors.affiliation: Department of Dermatology, College of Medicine, The Catholic University of Korea, Seoul, South Korea.
authors.forename: Baik Kee
authors.initials: BK
authors.lastname: Cho
authors.affiliation: Department of Dermatology, College of Medicine, The Catholic University of Korea, Seoul, South Korea.
authors.forename: Hyun Jeong
authors.initials: HJ
authors.lastname: Park
mesh_terms: D000305:Adrenal Cortex Hormones / Q000627:therapeutic use; D000328:Adult; D002648:Child; D002675:Child, Preschool; D004359:Drug Therapy, Combination; D005260:Female; D005533:Foot Dermatoses / Q000188:drug therapy / Q000473:pathology*; D006229:Hand Dermatoses / Q000188:drug therapy / Q000473:pathology*; D006801:Humans; D007166:Immunosuppressive Agents / Q000008:administration & dosage / Q000627:therapeutic use; D017512:Lichenoid Eruptions / Q000188:drug therapy / Q000473:pathology*; D008297:Male; D009260:Nail Diseases / Q000188:drug therapy / Q000473:pathology*; D016559:Tacrolimus / Q000627:therapeutic use; D014222:Triamcinolone Acetonide / Q000627:therapeutic use
chemical_list: D000305:Adrenal Cortex Hormones; D007166:Immunosuppressive Agents; D014222:Triamcinolone Acetonide; D016559:Tacrolimus