Phred....I think Pop Pop indicated the psa was 0.1.
Pop Pop,
Remember, it was the surgeon who wanted your Dad to see the radiolgist 2-1/2 years ago so I think he should see the radiolgist again.
If the psa has remained at 0.1 for 2-1/2 years, if it were me, I would NOT do radiation yet. Obviously, whatever is out there is not doing much, at least not yet. However, I would get psa tests every six months and when (yes, it is possible), the psa moves to 0.2, I would consider radiation at that point, without wasting too much time.
There has to be some consideration for quality of life. If a cancer is not moving fast or at all, in my opinion, why not wait and delay any problems that the treatment may cause?
Remember, this is solely my opinion. And also remember that doctors have their own opinions too. Some are very aggreesive; some not as aggressive. However (again my opinion), each of us have to weigh all of the positives and negatives and quality of life is an important consideration.
Lastly, I would be surprised if the radiologist, after saying 2-1/2 years ago to wait and see, would say now we should do it. Once the prostate is removed, the psa will go down to its lowest point in a couple of months. After that it will either stay at that point or go up. Your Dad's psa hasn't moved and that, to me, is wonderful.