Related Experiment Video
Updated: Aug 18, 2026

Creation of Two Saccular Elastase-Digested Aneurysms with Different Hemodynamics in One Rabbit
Published on: April 15, 2021
Bilateral external carotid artery aneurysms
Vladimir Grigoryants1, Matthew J Eagleton, Gilbert R Upchurch
1Section of Vascular Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI, USA.
Abstract:
A 60-year-old female was found on a physical examination to have bilateral palpable pulsatile neck masses. She denied local pain, cranial nerve compressive symptoms, or symptoms of cerebral ischemia. Duplex ultrasonography demonstrated bilateral 1.5 x 2.2 cm external carotid artery aneurysms. Isolated bilateral external carotid artery aneurysms were confirmed by computed tomography and angiography. The patient has been treated conservatively, and at 4-year follow-up, she remains asymptomatic, and the carotid artery aneurysms are unchanged in size.
Related Concept Videos
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...
Aneurysm I: Introduction
Aneurysm II: Clinical Manifestations and Diagnostic Studies
Aneurysm III: Interprofessional Care
Anastomoses
Anastomoses can be formed at arterial, venous, and lymphatic vessels.
Arterial Anastomosis: These occur between arteries. They are most common in...
