1, T1: Microscopic, DRE/Ultrasound undetectable \n 2, T1a: <=5 percent \n 3, T1b: >5 percent \n 4, T1c: as F/U of screening w/ high PSA \n 5, T2: within prost, DRE/ultrasound detectable \n 6, T2a: >half of one lobe \n 7, T2b: >half of one lobe,DRE detectable often \n 8, T2c: involve both lobes \n 9, T3: surrounding tissues or seminal vesicles \n 10, T3a: outside prostate on one side \n 11, T3b: outside prostate on both sides \n 12, T3c: to one or both seminal tubes \n 13, T4a: to bladder or rectum \n 14, T4b: beyond prostate or levator muscles \n 15, TX