Hemodynamic carotid pseudo-oclusion due to synchronic common and internal carotid artery stenosis

Abstract Introduction: synchronic stenosis of the common and internal carotid artery is a rare condition behaving as a hemodynamic pseudo-oclusion of the intracranial carotid artery. Case report: we report an unusual case of a patient with right common and internal carotid symptomatic stenosis diagnosed with carotid artery occlusion. Careful review of the CCTA and arteriogram revealed that tandem stenosis of the common and internal stenosis can mimic the oclusion of the proximal internal carotid artery with alternating blood flow. Discussion: after stenting the common carotid artery the percent diameter stenosis of the internal carotid artery was modified to 60% and a normalization of the cerebral perfusion was shown.