title: [Intraprostatic blue nevus].
abstract: OBJECTIVE
  The present article describes an additional case of blue nevus of the prostate, a rare benign lesion which must be distinguished from the more aggressive lesions.
  
  
  RESULTS
  This lesion was incidentally discovered in a patient who had a biopsy of the prostate. The microscopic examination disclosed the presence of melanin in the epithelium of the prostate gland.
  
  
  CONCLUSIONS
  Extracutaneous blue nevus does not progress to malignancy and must be distinguished from the more aggressive lesions.
authors.affiliation: Servico de Urología, Hospital de Cruces, Baracaldo, Vizcaya, España.
authors.forename: F
authors.initials: F
authors.lastname: Vesga Molina
authors.forename: M
authors.initials: M
authors.lastname: Acha Pérez
authors.forename: R
authors.initials: R
authors.lastname: Llarena Ibarguren
authors.forename: C
authors.initials: C
authors.lastname: Pertusa Peña
mesh_terms: D000368:Aged; D006801:Humans; D008297:Male; D018329:Nevus, Blue / Q000175:diagnosis; D011471:Prostatic Neoplasms / Q000175:diagnosis