Anti-GQ1b antibody syndrome
Subtypes | Signs required for diagnosis | ||||||||
External ophthalmoplegia | Ptosis | Mydriasis | Oropharyngeal palsy | Ataxia | Impaired consciousness or hyperreflexia | Areflexia or hyporeflexia | Arm weakness | Leg weakness | |
Fisher–Bickerstaff syndrome | |||||||||
Fisher syndrome | √ | √ | √ | ||||||
Incomplete forms | |||||||||
Acute ophthalmoparesis (without ataxia) | √ | ||||||||
Acute ptosis | √ | ||||||||
Acute mydriasis | √ | ||||||||
Acute oropharyngeal palsy | √ | ||||||||
Acute ataxic neuropathy (without ophthalmoplegia) | √ | ||||||||
Ataxic Guillain–Barré syndrome | √ | ||||||||
Acute sensory ataxic neuropathy | √ | ||||||||
Bickerstaff brainstem encephalitis | √ | √ | √ | ||||||
Pharyngeal-cervical-brachial weakness | √ | √ | |||||||
Overlap | |||||||||
Fisher–Bickerstaff syndrome overlapped by pharyngeal-cervical-brachial weakness | √ | √ | |||||||
Fisher–Bickerstaff syndrome overlapped by Guillain–Barré syndrome | √ | √ | √ |