I am sure the MDs have told you that the MRI is only ONE tool in the use and diagnosis of MS. Spinal taps, blood work, MRIs and the ruling out of more than 100 other diseases that can closely mimic MS are all proper tools, as well as your personal signs and symptoms over the course of time. you must have 2 clear MS events separated by at least 30 to 60 days break when you have a remission in symptoms. The MD may be saying MS based on MRI, AND blood work AND signs and symptoms, AND other stuff, while the radiologist may simply be looking at the MRI and using only one peice of the puzzle to make his diagnosis.

Is there an MS center in your area? Have you been evaluated for Optic nueritis? You spoke of visual issues, and frequently the Optic Neuritis is the first clear symptom that you have MS.

My best advice is to schedule an appointment with the MS clinic and take ALL your records, MRIs, blood work results, diary journals, and so on. Let the big boys have a look and give you a proper work up.

Hang in there.