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A patient presenting with right-sided weakness demonstrating an acute, large left MCA territory infarct as seen on diffusion-weighted imaging (A), with coronal CTA MIP image (B) showing abrupt occlusion involving the M1 segment of the left MCA (yellow arrowhead). Sagittal and axial neck CTA images (C and D) reveal a shelf-like intraluminal protrusion arising from the posterior wall of the left carotid bulb (red arrows), compatible with a carotid web.
