Prostate Cancer Calculator About this site: How likely is it that prostate cancer will spread to your lymph nodes? Wonder about your chances of having a recurrence after surgery? This calculator -- developed by Dr. E. David Crawford, Section Head of Urologic Oncology at the University of Colorado Health Sciences Center -- can help you get an idea. It works like this: You enter certain medical measurements, like PSA, Gleason grades, and the clinical stage of your cancer. The calculator then compares your information against a database of similar measurements from thousands of other patients. http://www.prostatecalculator.org/   Pluses: The site has cool mouseover graphics, and there's a thorough explanation of how the predictions are based on "artificial intelligence."   Minuses: Patients may not have the necessary information readily at hand. Also, the calculator is based on specific measurements and can't take into account individual circumstances that might impact a person's disease or recovery.   Best feature: There are calculators for estimating your chances of four possible outcomes.

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