I had an MRI last week due to a poor score on a cognitive test after my complaints of brain fog. I got a CD copy of the MRI today and read that it showed bilateral frontal demyelination. I have read and been told by the neurologist that B12 is important for the formation of the nerve coating (myeline). I see a neurologist Friday this week. I am hoping that this is reversable. Hoping for a shot ever other day until neuropathy symptoms no longer improve. Praying that it is not to late. My internist refused more shots when I complained. I get one shot a week of (cyn...) and have been for 9 weeks. Prehaps I will be believed now. I have been wondering if I was just nuts! Any advice appreciated. The neurologist I am seeing Friday is actually one I first saw and liked. He moved to St. Louis and I made an appointment to see him after the cognitive impairment diagnoses. I am taking the CD with me. I will see the doc that order theMRI the following week. Getting my second opinion before my first!