In september I had slip and fall accident and I hurt my upper left arm. I had about a 6 inch bruise on the back of my upper left arm. I went to an orthopedic surgeon and I explained I was having severe pain that would shoot down my arm and then i would get a pins and needles feeling from my upper arm down to my pinky and ring fingers and they would also get numb. He sent me to physical therapy, and this seemed to aggravate the arm even more. Finely they stopped physical therapy because they said I was not showing improvement and they thought I may have nerve damage. So I was finally sent to get an MRI. They MRI examiner told me she saw lots of black on the MRI scans over the injured area, that I've been complaining about. What could this "blackness" mean and could this be the reason for the shooting pain, numbness, and tingling. Im so worried this may cause me problems for a long time in the future.