title: [Verrucous carcinoma of the penis arising from a lichen planus. A true preneoplastic lesion?].
abstract: BACKGROUND
  Up to 30% of squamous cell carcinomas of the penis arise from a lichen sclerosus, but very few reports in which lichen planus was the preexisting lesion have been published. We report a male with verrucous carcinoma of penis that developed in an area of lichen planus.
  
  
  METHODS
  A 53-year-old male presented with an exophytic tumor on the glans penis that had been present for about 6 months. The lesion developed in a previously biopsied area of lichen planus hypertrophicus. After excision, histological diagnosis was verrucous carcinoma.
  
  
  CONCLUSIONS
  The development of any subtype of squamous cell carcinoma of penis in a lichen planus can be coincidental, or a neoplastic transformation of lichen planus can take place.
authors.affiliation: Servicio de Anatomia Patológica, Hospital Povisa, Vigo, Pontevedra. capialvarez@yahoo.com
authors.forename: C
authors.initials: C
authors.lastname: Alvarez Alvarez
authors.forename: F
authors.initials: F
authors.lastname: Meijide Rico
authors.forename: L
authors.initials: L
authors.lastname: Rodríguez González
authors.forename: I
authors.initials: I
authors.lastname: Antón Badiola
authors.forename: E
authors.initials: E
authors.lastname: Zungri Telo
authors.forename: J
authors.initials: J
authors.lastname: Antonio Ortiz-Rey
mesh_terms: D018289:Carcinoma, Verrucous / Q000473:pathology*; D006801:Humans; D008010:Lichen Planus / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D010257:Paraneoplastic Syndromes / Q000473:pathology*; D010409:Penile Diseases / Q000473:pathology*; D010412:Penile Neoplasms / Q000473:pathology*