Posted 11/16/2018 5:10 PM (GMT 0)
With your history, and the lump found, Stay, a PSMA PET scan, or an Axumin PET scan, is IMHO a good idea, and a logical next step. It may pinpoint the source of that PSA, and will evaluate the lump, which hopefully is the only source. With that data, you can find the most appropriate treatment.
Good luck!