I also had a Pi-Rads 4 lesion of 7 mm with a PSA of 2.9 and called T1c. I then had a trans perineal MRI guided fusion 30 core biopsy as my prostate was 120 grams. 5 cores were taken from the area of concern. 2 were 4-3 and 3 were 3-4 Gleason. This classified me as an unfavorable intermediate risk. Mayo did a PSMA Pet Scan that showed that it was confined to the prostate and had not spread. I elected to do 5 Proton Pencil Beam radiation treatments at Mayo Phoenix and I had the SpaceOar Gel inserted. I am now 11 days after my last treatment and have had very little urinary trouble at all. First week was a little harder to go and would not hold my normal amount without having the urge to go. My bowel has had a little bleeding after the 7th day but it is only a little pinkish discharge with a wet fart before having a bowel movement but none after it. So, I have been pleasantly surprised to say the least. Five treatments were much easier and way less driving than the 28 originally suggested by the radiation oncologist. Good luck making your decision as to which way to proceed.