title: Dermoscopy of halo nevus in own observation.
abstract: BACKGROUND
  Halo nevus (HN) is a rare dermatologic entity characterized by a typical whitish rim encircling the existing melanocytic nevus resembling a halo. The clinical picture is suggesting its diagnosis, but so far only several dermoscopic descriptions of halo nevus have existed in the PubMed database.
  
  
  OBJECTIVE
  To present the clinical and dermoscopic characteristics of halo nevus observed in dermoscopy.
  
  
  METHODS
  Fifteen patients were diagnosed clinically and dermoscopically with halo nevus during planned routine dermoscopic examinations of all melanocytic lesions in 2007-2013. All digital images stored in the computer database were analyzed retrospectively according to the procedure described in the study. The clinical and dermoscopic parameters such as the dermoscopic pattern, color of nevus, special features and description of the surrounding halo were analyzed statistically.
  
  
  RESULTS
  We analyzed 22 halo nevi (9 in females, 13 in males) in 15 patients (7 females, 8 males) diagnosed during the dermoscopic examination. The mean age of patients during dermoscopic examinations was 18.2 years. Mean patients' age at HN onset was 15.7 years. Halo nevi occurred the most often as a solitary lesion. The ratio of multiple halo nevi to solitary halo nevus was 5 : 10. Every third halo nevus was located on the posterior trunk upper. In 68.2% of HN cases, the surrounding rim (halo) was characterized by its homogenous, whitish color.
  
  
  CONCLUSIONS
  Dermoscopic patterns such as uniform globular and structureless constituted one-third each of them in all analyzed patterns.
authors.affiliation: The Center for Diagnostics and Treatment of Skin Diseases, Katowice, Poland. Head of Center: Grażyna Kamińska-Winciorek MD, PhD.
authors.forename: Grażyna
authors.initials: G
authors.lastname: Kamińska-Winciorek
authors.affiliation: Department of Production Engineering, Silesian Technical University, Katowice, Poland. Head of Department: Teresa Lis Assoc. Prof, PhD.
authors.forename: Jan
authors.initials: J
authors.lastname: Szymszal
keywords: Sutton nevus; dermatoscopy; dermoscopy; halo nevus
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