摘要：

Introduction The aim is to present an up-to-date definition and signification of the Gleason score. Methods Analysis of expert and consensus meeting conclusions on the subject, selectionned by the author. Results Gleason score is a major prognosis factor of prostate cancer. Described in 1966 by Donald Gleason, this score was modified by ISUP in 2005 and included now three grades from 3 to 5....

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