Hello my name is Theodore Lyon, I have two questions for you. Question 1. What does it mean when the findings of my pelvic MRI say that, there is interval resolution of the posterior paraspinal muscle edema, seen in the lower lumbar and pelvic regions. #2. What exactly is a renal cyst, my symptoms are that I have a like seeing pain in my left buttocks, that shoots and burns in my testicles and penis, and down my left leg, and it burns when I urinate and defecate, and I don't have a bladder infection. Will you please tell me if these two problems are serious enough to have surgery? I've also had six from UCSF Hospital in San Francisco, first back surgery was April 2008.