prostate cancer is a slow growing tumor w/ RF of genetics, high fat intake, obesity, AA. MC *adenocarcinoma* (95%) that is usually asymptomatic but can present with urethral obstruction and ________ due to site of common METS. PSA elevated to >____ requires US w/ needle Bx and *>10* requires _______ to r/o METS; DRE results? tx? screening regulations?