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Since 2010 pathologists at our institution have routinely been documenting the Gleason score at the margin and length of the positive surgical margin after prostatectomy. In this study we evaluate how the Gleason score and positive surgical margin length correlate with the grade and adverse pathological characteristics of the final specimen, and whether the positive surgical margin Gleason score affects the risk of early biochemical recurrence.

A total of 4,082 consecutive patients undergoing radical prostatectomy and pelvic lymph node dissection between 2010 and 2014 for localized prostate cancer were included in the study, of whom 405 had a Gleason score of 7 or greater of the primary nodule and a positive surgical margin with the length and Gleason score recorded at the margin. Concordance rates between the Gleason score at the margin and the final pathological specimen …