When I had radical surgery done little over 10yrs ago, the cancer was in my apex.
The pathology stated outside the margins but urologist also stated that when radical surgery is done sometimes the pathologist gets it wrong.
Based on his experience and my surgery, he stated that further treatment was not necessary at the time.
We discussed further options before surgery and had a game plan laid out. Agressive chem followed by radiation if necessary and finally hormone therapy.
It has been 10 years and so far so good. Only problem he couldn't salvage the nerves since cancer was within this area. ED is small consequence due to alternative. The pumps works fine and the others - pills and injections did not.