Acute demyelination mimicking vascular hemicrania

Area of Science:

• Neurology
• Neuroimmunology

Background:

• Vascular hemicrania and posterior fossa dysfunction symptoms often suggest cerebrovascular events.
• Differential diagnoses typically include vertebral artery dissection, aneurysms, vascular malformations, and brainstem infarction.

Observation:

• A 29-year-old woman presented with acute hemicrania, trigeminal neuropathy, and posterior fossa signs.
• Initial diagnostic considerations focused on vascular etiologies.

Findings:

• Radiographic imaging and cerebrospinal fluid (CSF) analysis revealed evidence of demyelination.
• The patient's presentation was ultimately attributed to an acute demyelinating event.

Implications:

• Acute demyelination should be included in the differential diagnosis for patients presenting with vascular hemicrania and posterior fossa dysfunction.
• This broadens the diagnostic scope beyond purely vascular pathologies in specific neurological presentations.