My biopsy result was also Gleason 3+4, but my PSA was 14.5 (an adverse factor puting me in the unfavorable intermediate risk group). I learned that the intermediate risk group as a whole was extremently hetrogenous with some in the group similar in risk category to Gleason 6, while others were very high risk similar to Gleason 8 or higher. Before making any decision on what type of treatment I would seek (or even if a treatment was necessary), I had a genocmic test done: my GPS scoere was 47, showing the very aggressive and high risk biology of my cancer. If my GPS score was below 20, my risk would have been very similar to Gleason 6, and I would have definitely considred active sureveillance, intead of treatment. But given a GPS score of 47, I evaluated surgery vs radiation and settled on surgery, primarity to say "good bye and good riddance" to my very enlarged prosate which as caused me all kinds of urinary issues for many years, even after a TURP surgery. Also, both my surgeon and a radiation oncologist I consulted with told me radiation treatment will probably cause inflamation of my troubled and enlarged prostate and will likely cause urethral strictures and obstructions during and post treatment.

Bottom line: I suggest you get a genomic test before deciding a treatment is even required in your case.