Congenital absence of the left internal carotid artery

Annals of Vascular Surgery
Shonak B PatelPyongsoo D Yoon

Abstract

The absence of the internal carotid artery (ICA) is a rare congenital anomaly, occurring in <0.01% of the population. Aplasia of the ICA may be harmless; however, the significance of ICA aplasia may be associated with conditions of clinical importance, such as in the setting of surgery, thromboembolic disease, and detection of cerebral aneurysms, and therefore should prompt further evaluation to rule out abnormalities. We present a case of left ICA aplasia diagnosed after work-up of neurological events. The incidence of intracranial aneurysm in association with aplasia has been reported as 25-43% compared to 2-4% in the general population. Mechanisms to explain the association between aplasia and intracranial aneurysms include embryological development or hemodynamic derangement. Recognition of this anomaly becomes important in thromboembolic disease as emboli in one cerebral hemisphere may be explained by atherosclerotic disease in the contralateral common carotid artery or vertebrobasilar system. Of significance, planning endarterectomy denotes consideration as both cerebral hemispheres may be dependent upon the atheromatous carotid. Recognizing this anomaly is important and may help prevent false diagnosis of carotid dissect...Continue Reading

References

Feb 26, 2003·Acta neurochirurgica·J-H LeeD H Han

❮ Previous
Next ❯

Citations

Nov 19, 2011·International Journal of Surgery Case Reports·Yu-Hwa LiuYu-Tung Feng

❮ Previous
Next ❯

Related Concepts

Related Feeds

Aneurysm

Aneurysms are outward distensions or bulges that occurs in a weakened wall of blood vessels. Discover the latest research on aneurysms here.

Carotid Artery Diseases

Carotid artery disease is a group of pathological conditions of the carotid artery. Discover the latest research on carotid artery disease here.

Related Papers

The Indian Journal of Radiology & Imaging
Dhananjaya I BhatJerry Me Kovoor
Journal of Clinical Neuroscience : Official Journal of the Neurosurgical Society of Australasia
Jung Yong AhnJin Yang Joo
Neurological Sciences : Official Journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology
Lei ChenDong Zhou
© 2022 Meta ULC. All rights reserved