[Fisher's syndrome. Peripheral or central origin (author's transl)]

Area of Science:

• Neurology
• Neuroscience

Background:

• Fisher syndrome (FS) is a rare neurological disorder.
• Traditionally considered peripheral, its central nervous system involvement is debated.
• FS shares features with Guillain-Barré syndrome (GBS), particularly its mesencephalic form.

Observation:

• This study reviews five cases of Fisher syndrome.
• Oculographic and electromyographic studies were conducted.
• Pathognomonic features in these and literature cases were analyzed.

Findings:

• Evidence suggests a probable central origin for Fisher syndrome.
• Ataxia and severe equilibrium disturbances are key findings.
• These symptoms may stem from a central vestibular syndrome, not cerebellar lesions.

Implications:

• Reclassifying Fisher syndrome's origin impacts diagnostic approaches.
• Understanding the central vestibular component is crucial for treatment.
• This research contributes to differentiating FS from other neuropathies.