Re the brain biopsy: I suggest sending PM's or e-mails (or making phone calls) to the 'Catters with MS who have posted here, to find out if that's standard operating procedure for diagnosis. I'm just guessing in the dark here but might it be necessary only if other tests are inconclusive?? Where did Amy get the info about needing a brain biopsy in the first place???

As catspaw said, not getting a necessary test is worse than getting one. For my own part, I wouldn't want to live through a lung biopsy again but it did tell the doctors that I did not have lung cancer!! Besides, the idea of having someone else stick a needle into one's brain may be worse than the test itself. Bottom line: get the facts before wondering (and needlessly worrying) about possibilities!