The FDG and Choline scans are the alternatives I am familiar with, to find metastasis that are not producing PSMA. The Axumin scan was not mentioned as beneficial for this but i’ve seen reports that say it can find cancer that can’t be found in the PSMA pet and can also find smaller lesions than the PSMA pet scan.

Then there is the other option mentioned at the PCRI conference. When PSA rises but can’t be found in the PSMA Pet scan, do an MRI, it will be found in Retroperitoneum or lung with high frequency