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This page is being served from the Urological Sciences Research Foundation web repository, and was originally posted between 1996-2008. In January 2009 USRF’s founder, Dr. Leonard S. Marks and his staff joined UCLA’s Department of Urology where they are continuing their research. Click for more information.
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Figure 1. Diagram showing effect of PSA testing, which began in the mid-1980s, on volume of index (largest) cancer in the prostate over ensuing years. The index cancer volume, shown as large purple spot, has progressively decreased. In data from Stanford University, volume of the average index cancer found at radical prostatectomy has decreased from 5.3 cc to 2.4 cc over the past 20 years, mainly because of increasingly early diagnosis3. |
