Thanks, everyone. My Dad had a second opinion yesterday and the doctor did order a PET scan which is going to take place this Friday (8/15). Dad won't get the results until he meets with the doctor again on 8/26 which just happens to be his 82nd birthday.
The doctor yesterday was the one who Dad originally had an appointment with last year to talk about cystectomy. Dad didn't keep the appointment and instead chose to see another doctor who had operated on a friend of my brother. As it turned out, that may have been the ONLY radical cystectomy that doctor had ever done! He chose to leave Dad's urethra and that's where the cancer was found recently.
The doctor yesterday was brutally honest with his opinion (which was based only on the pathology report we gave to him and his prior experience with similar situations.) He was not optimistic, to say the least. Suffice it to say that he made me cry. He recommended an even MORE radical operation than what my Dad's current uro has recommended and added that he is not sure whether my Dad could even survive that type of surgery. He did say that Dad's current urologist is an excellent surgeon with a great reputation.
I asked Dad if he is sure he wants to know if the cancer has spread and he said "Absolutely." If it has spread to other parts of his body, he is not going to submit to the scheduled surgery. He feels great right now and is walking an hour each morning.
My concern is that, with any test, the results are a snapshot of that particular moment. That doesn't mean that next week or next month that "snapshot" would be the same. Just because the scan is clear today doesn't mean there is no cancer or that there will never be any cancer. That's a hard thing to wrap my head around.
Guess we just have to wait and see how the PET scan comes out and then make the next "best" decision.