I have multiple cavenomas in the brain and have had one removed from the right temporal lobe 10 years ago. I have now been told I have one in L7 L8 approx 2mm, my symptoms are pain in left shoulder, mid spine and lower back. Also hypersensitivity on left hand side from shoulder down and also in left leg from knee down. What is the prognosis of the spinal cavernoma-my GP said he will prescribe Gabapentin. Thank you.