I have had a few mris of different areas. I think there are a variety of things it can show but for me I think they were looking for a tumor,trapped nerve,growth,etc. I know at one time they were looking at if I had ms and I am not sure if that would be found in an mri but I did not.
I hope you get some answers from your doctor and the test results are ok or very easy to fix. I know sometimes for me with these tests since my condition is from the unknown why I want something to show obviously that is small and easy to fix so I can feel better.