Miller-Fisher syndrome combines the clinical trial, ophthalmoplegia, ataxia, and diffuse osteotendinous areflexia. It is a variant of Guillain-Barré syndrome, from which it differs by the positivity of anti-GQIb antibodies in the serum. Its clinical evolution is most often favorable. In addition to the classical form, exceptional clinical forms, either incomplete or extended to the confines of the SGB are also described. We thus describe a case of extensive SMF, overlapping with the SGB, associating in addition to the classical triad, bulbar, facial and dysautonomic involvement, of rapidly favorable evolution after a polyvalent immunoglobulin treatment in intravenous, in a man French 47-year-old.