Differential diagnosis of diphtheritic neuropathy

Diphtheritic neuropathy Guillain-Barré syndrome
PhasesBiphasicMonophasic
Time courseOnset time equals recovery timeRapid onset, slower recovery
Facial muscle involvementRareCommon
AutonomicCardiac vagal denervation, tachycardiaSympathetic and parasympathetic
Other important featuresBlurred near vision, palatal weakness, myocarditis