Abstract
Miller Fisher syndrome (MFS) is a variant of Guillain–Barré syndrome, and it is typically
characterized by the triad of ophthalmoplegia, ataxia, and areflexia. We report a
13-year-old boy affected with MFS associated with parvovirus B19 infection in which
immunoglobulin (Ig)G and IgM anti-GQ1b antibodies were not detected. Treatment with
intravenous Igs resulted in a progressive and rapid resolution of the clinical features.
To our knowledge, this is the first example in the literature of seronegative anti-GQ1b
antibody MFS associated with parvovirus B19 infection in childhood. The possible role
of other gangliosides is discussed.
Keywords
parvovirus B19 - Miller Fisher syndrome - childhood - immunoglobulins