The Accuracy of Prostate Biopsies for Predicting Gleason Score in Radical Prostatectomy Specimens. Nationwide trends 2000-2012.
To investigate how well the Gleason score in diagnostic needle biopsies predicted the Gleason score in a subsequent radical prostatectomy (RP) specimen before and after the 2005 International Society of Urological Pathology (ISUP) revision of Gleason grading, and if the recently proposed ISUP grades 1-5 (corresponding to Gleason score 6, 3+4, 4+3, 8, and 9-10) better predict the RP grade.