Editorial comment on: Prevalence of a tertiary Gleason grade and its impact on adverse histopathologic parameters in a contemporary radical prostatectomy series.

In a recent European survey, 99.5% of uropathologists used the Gleason system for grading of prostate cancer in radical prostatectomy (RP) specimens [1]. The Gleason score was originally based on the two predominant Gleason grades, and patterns occupying <5% of the tumor were, by convention, ignored. The 2005 International Society of Urological Pathology… CONTINUE READING