title: Dermoscopy of verrucous epidermal nevus: large brown circles as a novel feature for diagnosis.
abstract: BACKGROUND
  The epidermal nevus is a hamartomatous proliferation of the epithelium that can involve keratinocytes, sebaceous glands, the pilosebaceous unit, and eccrine or apocrine glands. It occurs in one in 1000 live births and most commonly presents as the verrucous type. Dermoscopy is a non-invasive technique commonly used to differentiate between melanocytic and non-melanocytic lesions.
  
  
  OBJECTIVE
  This study was performed to analyze dermoscopic aspects of verrucous epidermal nevi, which have not previously been described.
  
  
  METHODS
  Dermoscopic analyses of eight different verrucous epidermal nevi were conducted. Each lesion was excised, and its diagnosis was histopathologically confirmed.
  
  
  RESULTS
  In non-melanocytic lesions, a new dermoscopic feature of large brown circles was observed. This characteristic is useful in the diagnosis of verrucous epidermal nevi.
  
  
  CONCLUSIONS
  Large brown circles represent a specific dermoscopic feature for the diagnosis of verrucous epidermal nevus.
authors.affiliation: Plastic and Reconstructive Surgery Unit, Campus Bio-Medico University of Rome, Rome, Italy.
authors.forename: Mattia
authors.initials: M
authors.lastname: Carbotti
authors.affiliation: Plastic and Reconstructive Surgery Unit, Campus Bio-Medico University of Rome, Rome, Italy.
authors.forename: Rosa
authors.initials: R
authors.lastname: Coppola
authors.affiliation: Plastic and Reconstructive Surgery Unit, Campus Bio-Medico University of Rome, Rome, Italy.
authors.forename: Antonio
authors.initials: A
authors.lastname: Graziano
authors.affiliation: Plastic and Reconstructive Surgery Unit, Campus Bio-Medico University of Rome, Rome, Italy.
authors.forename: Maria
authors.initials: M
authors.lastname: Verona Rinati
authors.affiliation: Plastic and Reconstructive Surgery Unit, Campus Bio-Medico University of Rome, Rome, Italy.
authors.forename: Francesco Luigi
authors.initials: FL
authors.lastname: Paolilli
authors.affiliation: Plastic and Reconstructive Surgery Unit, Campus Bio-Medico University of Rome, Rome, Italy.
authors.forename: Salvatore
authors.initials: S
authors.lastname: Zanframundo
authors.affiliation: Plastic and Reconstructive Surgery Unit, Campus Bio-Medico University of Rome, Rome, Italy.
authors.forename: Vincenzo
authors.initials: V
authors.lastname: Panasiti
mesh_terms: D000328:Adult; D046169:Dermoscopy; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D054000:Nevus, Sebaceous of Jadassohn / Q000000981:diagnostic imaging* / Q000473:pathology*; D010858:Pigmentation