I had proton therapy on the prostate bed after prostatectomy due to the finding of local recurrence. This was followed by a approximately tenfold decrease in PSA to 0.4, but later the PSA started to increase again. Over the next 3 years, the PSA continued to rise, but repeated PET/CT PSMA examinations found nothing. Now my PSA is 5.6 and I will probably have another PET/CT PSMA. And then we will see, or maybe not again...