• Stage I - tumor cannot be felt during a digital rectal exam; it was detected by an elevated PSA blood test or incidentally found during another prostate procedure for a benign condition.
• Stage II - tumor can be felt during a digital rectal exam, but it has not spread beyond the prostate and it hasn't spread to lymph nodes or other organs
• Stage III - tumor extends outside the prostate and can be in the seminal vesicles, but not in any other organs or lymph nodes
• Stage IV - tumor has spread to other organs or lymph nodes
