title: [Concordance between Gleason scores of trans rectal biopsies and the surgical piece of radical prostatectomy].
abstract: BACKGROUND
  Gleason pathological score in prostate cancer is an important prognostic indicator. However, the concordance between the score of trans rectal needle biopsies and the final score of the surgical piece may be variable.
  
  
  OBJECTIVE
  To analyze the concordance between Gleason scores of trans rectal prostate biopsies and those of the surgical piece obtained after prostatectomy.
  
  
  METHODS
  Retrospective analysis of 168 pathological records of radical prostatectomies, performed between 1993 and 2009. All these patients had also a trans rectal biopsy performed previously. Patients with less than 12 tissue cylinders obtained during the trans rectal biopsy or incomplete data were not included in this analysis.
  
  
  RESULTS
  Sixty eight percent of trans rectal biopsies had Gleason scores that were concordant with those of the surgical piece. The score was higher or lower in 27 and 10% of biopsies, respectively.
  
  
  CONCLUSIONS
  Gleason scores of trans rectal biopsies and those of the surgical piece were concordant in 68% of cases in this series of pathological records.
authors.affiliation: Departamento de Anatomía Patológica, Facultad de Medicina, Universidad de La Frontera, Temuco, Chile. otescalona@gmail.com
authors.forename: Oscar
authors.initials: O
authors.lastname: Tapia
authors.forename: Enrique
authors.initials: E
authors.lastname: Bellolio
authors.forename: Juan Carlos
authors.initials: JC
authors.lastname: Roa
authors.forename: Pablo
authors.initials: P
authors.lastname: Guzmán
authors.forename: Miguel
authors.initials: M
authors.lastname: Villaseca
authors.forename: Juan Carlos
authors.initials: JC
authors.lastname: Araya
mesh_terms: D000230:Adenocarcinoma / Q000473:pathology* / Q000601:surgery; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001707:Biopsy, Needle; D002277:Carcinoma / Q000473:pathology* / Q000601:surgery; D006801:Humans; D008297:Male; D060787:Neoplasm Grading; D011379:Prognosis; D011467:Prostate / Q000473:pathology* / Q000601:surgery; D011468:Prostatectomy; D011471:Prostatic Neoplasms / Q000473:pathology* / Q000601:surgery