An unusual case of bilateral internal carotid artery occlusion—A case report

An asymptomatic bilateral carotid artery occlusion is a rare event with few reported cases in the literature. Ordinarily, a bilateral internal carotid artery (ICA) occlusion is an acute accident leading to serious cerebrovascular disease and complications including recurrent ischemic stroke or death. In a retrospective, population-based study on patients with symptomatic ICA occlusion, an incidence rate of 6/100,000 was reported. Unfortunately, due to its nature, it is difficult to ascertain the prevalence of asymptomatic ICA occlusions in the community. In this report, a recent case of asymptomatic bilateral ICA occlusion, diagnosed by ultrasound and confirmed by computer tomography (CT), is discussed.