(aka: Landry–Guillain–Barré–Strohl syndrome:
- Most common cause of acute flaccid paralysis
- Rapidly progressive ascending paralysis & areflexia
- Autonomic dysfunction, CSF albumin-cytologic dissociation.
- The sensory and motor systems may be equally affected.
- The paralysis moves rapidly from lower to upper areas.
Differential diagnosis:
- Myasthenia gravis: Intermittent & worsened by exertion.
- Multiple Sclerosis: CNS demyelination, hyperreflexia, multiple lesions on MRI, oligoclonal bands in CSF.
- Botulism: Descending weakness fixed dilated pupils, food/wound toxin exposure & prominent cranial nerve dysfunction with normal sensation.
- Tick paralysis: Ascending paralysis but spares sensation.
- West Nile virus: Headache, fever, & asymmetric flaccid paralysis but spares sensation.
- Transverse myelitis: Pain, weakness, abnormal sensation, urinary dysfunction, sensory level, hyperreflexia, spinal cord lesion on MRI.
- CIDP: Chronic progression, relapses, requires long-term immunotherapy.
- Spinal Cord Compression: Hyperreflexia, sensory level, MRI shows mass or compression.