Carotid pseudo-occlusion

Last revised by Frank Gaillard on 22 Dec 2022

Carotid pseudo-occlusion refers to apparent occlusion of the cervical internal carotid artery on CT angiography or digital subtraction angiography due to a stagnant column of unopacified blood proximal to terminal T-junction occlusion by thromboembolism 1,2

It is important not to mistake this for true occlusion, carotid dissection or a tandem lesion


The term carotid pseudo-occlusion has also been used to describe carotid near-occlusion when the internal carotid artery distal to high-grade stenosis at its origin is underfilled. 

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Cases and figures

  • Case 1
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