Reply To: Limits of Miller Fisher Variant
MFS and GBS are similar in that they are autoimmune disorders where various antibodies attack the nervious system. The diagnostic criteria for MFS is the presence of elevated IgG anti‐GQ1b antibodies. The only bad part is that the test for this antibody takes about 2 weeks to come back, so they typically begin treatment without knowing for sure.
Your Dr is correct in that the mechanisms and how theymay be related are not known