An Internal Carotid Artery Dissection Masquerading as Optic Neuritis: A Case Report

Area of Science:

• Neurology
• Vascular Neurology
• Neuroimaging

Background:

• Carotid artery dissection (CAD) is a significant cause of ischemic stroke, particularly in younger populations.
• Prompt diagnosis and management of CAD are crucial to prevent neurological deficits.

Observation:

• A 43-year-old female presented with headache, a dilated pupil, and blurred vision.
• Initial management was for atypical optic neuritis.

Findings:

• The patient was diagnosed with internal carotid artery dissection (ICAD) with ipsilateral hemispheric involvement.
• The presentation was atypical, initially misdiagnosed, underscoring diagnostic challenges.

Implications:

• This case emphasizes the importance of considering ICAD in patients with sudden neurological deficits, even with atypical symptoms.
• Enhanced clinical suspicion and timely neuroimaging can improve outcomes for patients with carotid artery dissection.