I think it would be very unusual for a surgeon to accidentally leave part of the prostate other than tiny bits of tissue during attempts at nerve-sparing.
It is possible that if the cancer has spread to those nerves (mine had, they took them too), there might be some remaining, but that is a cost/risk of nerve-sparing to be considered.
(Added - Other posts made the point that tissue might be left if the bladder and rectum can not be cleanly separated, but I would hope the doctor would note that in his reports).
The cancer can also get out into the lymph nodes. They take what they estimate to be enough to test to see if it is clearly out, but they can't take them all. They took 12 in my case, all were negative. If it was the 13th one that was positive, then I lose.
I would not say that follow-up radiation (i.e. without a PSA rise) is "common". It was explained to me to be needed because of the aggressive type of cells they found. It was an after-surgery evaluation based on the pathology report. With the high costs, I can't imagine that it would ever be automatic unless you fell into certain categories (I did).
Post Edited (142) : 6/13/2010 3:18:27 PM (GMT-6)