Ed, sorry you are having to deal with this. You've had quite a run. An auxumin scan, or any other scan will not pick up anything at such a low PSA. I think the stats say something like 50% of the time an auxumin scan will find something at .2
UNFORTUNATELY there is no clear black and white answer as to when to start radiation, or if to start.
At .06 my surgeon advised me to do nothing until .2, and the do an auxumin scan, and if nothing showed, to wait until .4 even .5 and scan again. But at the same time, two top RO's both advised me to treat. And i took their advice and started ADT + SRT at .08.
In your case,it seems to me that your rate of rise is so very slow, and has taken such a long time after surgery to commence, that you can wait at least a while. With that said, i think considering your Gleason 8, its better to err on the side of caution. So perhaps wait for one more rise and see an RO for an opinion. (or maybe do that now).
The other thing to consider is age. Based on your signature, i'm thinking you are 77 years old. If your psa continues to rise at this pace, it will likely not get to .2 until you are 85 or 90, and even then may not be an issue. So consider that.
Just that G8 is what nags at me. Welcome to the world of neither here nor there. Many of us have been, and are, in that place right now, so you are not alone
I am not a doctor, just another guy without a prostate
Dx Age 64 Nov 2014, PSA 4.3
BX 3 of 12 cores positive original pathology G6
RALP with Dr Ash Tewari Jan 6, 2015
Post surgical pathology G7 (3+4), - ECE, - Margins, -LN, -SV (+ frozen section apex converted to negative)
PSA @ 6 weeks 2/15, .<02, remained <0.02 until January 2017, .02, repeat Feb 2017, still .02. May 2017-.033, August 2017- .033 November .046, March 2018 .060. June 2018 .068, July 2018 - .082, August 2018, .078, August 2018 - .08
Decipher test, low risk, .37 score
My story.... tinyurl.com/qgyu3xq
My PSA History - /drive.google.com/file/d/1ltbG8x-iyH3k9pEltudhXt9u1krRwJSH/view?usp=sharing