Acute onset of symmetric sensory loss | Progressive weakness in both arms and legs† |
Peak deficit achieved within four weeks | Areflexia† |
Diminished or absent reflexes | Progression of symptoms over days to four weeks |
Normal motor strength | Relative symmetry of symptoms |
Electrodiagnostic evidence of demyelination in at least two nerves | Mild sensory symptoms or signs |
Monophasic course | Cranial nerve involvement |
No other known cause for neuropathy | Recovering two to four weeks after progression ceases |
No family history of neuropathy | Autonomic dysfunction |
Albuminocytological dissociation in CSF | Absence of fever at onset |
| Albuminocytological dissociation in CSF |
| Typical electrodiagnostic features |