I'm wondering what the symptoms were, and how it showed up on the MRI? I have all of the symptoms in my opinion, and have had two spinal surgeries in the last 12 months, with the last one being a fusion at L4-L5. I still have terrible leg pain though, and my latest MRI reported an "unenhancing mass". The neorosurgeon I saw said "it is probably just a shadow of the screw." I am getting a second opinion, but just wondering if anybody out there has ever had this condition???