Good points. I have never considered Gleason 6 to be anything else but cancer, it is the Mayo Clinic and others that are debating the issue between irregular cell, and cancer. Whatever anybody calls Gleason 6 it does not change the dangerousness of the situation, especiaaly in my case with a father who at 64 his Gleason 9 escaped the prostate. I am 58 and had a small lesion Gleason 7 removed from one side of the prostate along with all of the Gleason 6. The other side still has Gleason 6. My PSA Yesterday was 2.5 down from 4.4 in December. I have an MRI scheduled at Mayo in rochester in September with contrast. I will check to see what MRI machine they are using. I have learned that fasting for the right amount of time can slow down digestion, and give much better pictures. I don't have any illusions that the HIFU I had last year will be my last treatment. Thanks for the reply, and good information!