Related Experiment Video
Updated: May 19, 2026

Bilateral Common Carotid Artery Occlusion as an Adequate Preconditioning Stimulus to Induce Early Ischemic Tolerance to Focal Cerebral Ischemia
Published on: May 9, 2013
Hypoplastic internal carotid artery stenosis with a low-lying carotid bifurcation causing cerebral ischemia
Alan G Dawson1, Alasdair Wilson, Jana Maskova
1Department of Vascular Surgery, Aberdeen Royal Infirmary, Foresterhill, Aberdeen, Scotland, United Kingdom. alan.g.dawson.04@aberdeen.ac.uk
Abstract:
Congenital abnormalities of the internal carotid artery (ICA) are infrequent and can be associated with aberrations of the Circle of Willis. A 47-year-old gentleman presented with transient neurological symptoms and cerebral infarction and carotid Doppler showed a stenotic right ICA. Subsequent computed tomographic angiography showed a hypoplastic ICA with a low-lying bifurcation at the C6 level and aplasia of the anterior communicating artery. This patient was commenced on aggressive medical therapy and at 7-month follow-up was symptom-free. This case report highlights the need for a centralized registry with long-term follow-up data in order to identify optimal management.
Related Concept Videos
Transient Ischemic Attack l: Introduction
The Arch of Aorta
Encircling the heart, the coronary arteries form a ring-like structure before...
Arteries of the Head and Neck
The internal carotid arteries supply blood to the anterior portion of the cerebrum. They enter the...
Ischemic Stroke l: Introduction
Ischemic Stroke ll: Pathophysiology
Hemorrhagic Stroke l: Introduction
