Mike , thanks for asking . Before my surgery I had a bone scan and MRI and a CT scan specific to the prostate with contrast . Therefore the Dr concluded that he would go ahead with surgery as the various scans were negative . Here in Canada we generally use the PSMA-PET scan on a reoccurrence basis or persistent PSA . Thats what I have observed anyway . BUT you make a valid point.....why no PSMA PET scan before the surgery ? I didnt even think to ask 3.5 years ago as I was still learning about PC and had very basic knowledge . I asked to be put on a cancellation list . So, right after all me scans I was lucky enough to get the surgery about 1 week after I was put on list for the operation . They removed the prostate , and did 10-14 samples of tissues in bed area . Zero Cancer cells found . 3+4 Gleason and a 3mm breach that looked like it just happened . The biopsy proved it was 3+4 Gleason and all the cells around the small breach was type 3 , so the Dr's were relieved about that . they said the operation was good and that my protate and lesson was very small . They also mentioned zero cancer cells found in all of the various sample. I opened up the lab results this morning . Again I am at 0.11 . So the last four have been ~ 0.09 , 0.14 , 0.11 , then this one yesterday 0.11 . Thanks for your help Mike ! Merry Christmas to you and yours ! James .