Hypoplastic vertebral artery

Case contributed by Dr David Cuete

Presentation

History of Stroke days ago

Patient Data

Age: 40 years
Gender: Male

CTA Neck

CT

Computed tomography angiography shows a hypoplastic right vertebral artery with a stenosis in the V1 segment. CT 3D angiogram. Left vertebral is large and dominant. Right vertebral is small and hypoplastic. The curved reformatted image demonstrates the entire length of a hypoplastic right VA

Case Discussion

Congenital vertebral artery (VA) hypoplasia is an uncommon embryonic variation of posterior circulation. The frequency of this congenital variation was reported to be 2-6% from autopsy and angiograms

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