title: Dermoscopic pattern of psoriatic lesions on specific body sites.
abstract: BACKGROUND
  Scarce evidence exists on the dermoscopic pattern of psoriasis on specific body sites.
  
  
  OBJECTIVE
  To describe the dermoscopic characteristics of psoriatic plaques located on the scalp, face, folds, palms, soles and genitalia.
  
  
  METHODS
  Dermoscopic images of psoriatic lesions located on the aforementioned body sites were retrospectively evaluated for the presence of predefined criteria.
  
  
  RESULTS
  A total of 139 lesions from 85 patients were included in the study. Dotted vessels were the commonest dermoscopic criterion (97.1%) followed by white scales (64.7%), while vessel distribution was regular in 87.7% of cases. Regularly distributed dotted vessels represented a constant finding in all locations, while the frequency of white scales varied significantly among different body sites.
  
  
  CONCLUSIONS
  The well-known dermoscopic criteria of psoriasis can also be seen in lesions located on the scalp, face, palms, soles, folds and genitalia, with the frequency of white scales varying among different body sites.
authors.affiliation: Skin Cancer Unit, Arcispedale Santa Maria Nuova IRCCS, Reggio Emilia, Italy.
authors.forename: Aimilios
authors.initials: A
authors.lastname: Lallas
authors.forename: Zoe
authors.initials: Z
authors.lastname: Apalla
authors.forename: Giuseppe
authors.initials: G
authors.lastname: Argenziano
authors.forename: Eleni
authors.initials: E
authors.lastname: Sotiriou
authors.forename: Vito
authors.initials: V
authors.lastname: Di Lernia
authors.forename: Elvira
authors.initials: E
authors.lastname: Moscarella
authors.forename: Caterina
authors.initials: C
authors.lastname: Longo
authors.forename: Theodoros
authors.initials: T
authors.lastname: Sidiropoulos
authors.forename: Iris
authors.initials: I
authors.lastname: Zalaudek
mesh_terms: D000328:Adult; D000368:Aged; D015331:Cohort Studies; D046169:Dermoscopy / Q000379:methods*; D005148:Facial Dermatoses / Q000453:epidemiology / Q000473:pathology; D005260:Female; D005533:Foot Dermatoses / Q000453:epidemiology / Q000473:pathology; D005835:Genitalia / Q000473:pathology; D006115:Greece; D006229:Hand Dermatoses / Q000453:epidemiology / Q000473:pathology; D006801:Humans; D015994:Incidence; D007558:Italy; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D011565:Psoriasis / Q000453:epidemiology* / Q000473:pathology*; D012189:Retrospective Studies; D012536:Scalp Dermatoses / Q000453:epidemiology / Q000473:pathology; D012720:Severity of Illness Index