Pearl 1: An intention tremor is characterized by onset/worsening of the tremor as the finger nears its target and reflects cerebellar dysfunction.
Pearl 2: Any cerebellar finding can be due to dysfunction of the cerebellar inflow/outflow tracts (in addition to dysfunction of the cerebellum itself).
Pearl 3: The Miller Fisher syndrome is a rare variant of Guillain-Barre Syndrome characterized by ophthalmoplegia, ataxia, and areflexia. The Miller Fisher syndrome does not present with the ascending paralysis of typical GBS. Miller Fisher syndrome can be diagnosed with
Pearl 4: GBS and Miller Fisher are clinical diagnoses, but supportive tests include LP (with albumino-cytologic dissociation) and anti-ganglioside antibodies.