Because prostate biopsies are tissue samples from different areas of the prostate, the Gleason Score on a biopsy usually reflects your cancer's true grade. However, in about 20% of cases the biopsy grade is lower than the true grade because the biopsy misses a higher grade (more aggressive) area of the cancer. It can work the other way, too, with the true grade of the tumor being lower than what is seen on the biopsy.

Early detection saved my life.  More men need to know about their risk, and their opportunities to get screened.

~ Keith Wegen, prostate cancer survivor

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