Congenital absence of internal carotid artery with intercavernous anastomosis: Case report and systematic review of the literature

The absence of an internal carotid artery is a rare congenital anomaly. In the absence of the internal carotid artery, collateral circulations develop through the circle of Willis, persistent embryonic arteries or transcranial collaterals of the external carotid artery. Six pathways of collateral ci...

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Bibliographic Details
Published in:Interventional Neuroradiology 2016-08, Vol.22 (4), p.473-480
Main Authors: Oz, Ibrahim Ilker, Serifoglu, Ismail, Yazgan, Omer, Erdem, Zuhal
Format: Article
Language:English
Subjects:
Adult
Anatomy
Carotid Artery, Internal - abnormalities
Cerebral Angiography
Cerebral Arteries - abnormalities
Collateral Circulation
Female
Humans
Incidental Findings
Magnetic Resonance Imaging
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Summary:The absence of an internal carotid artery is a rare congenital anomaly. In the absence of the internal carotid artery, collateral circulations develop through the circle of Willis, persistent embryonic arteries or transcranial collaterals of the external carotid artery. Six pathways of collateral circulation have been described. Intercavernous anastomosis is between cavernous segments of the bilateral internal carotid arteries and is rarely seen. Patients with an absence of the internal carotid artery can be completely asymptomatic. However, these patients can present with subarachnoid hemorrhage or stroke accompanying cerebral aneurysm or abnormal collateral. We combined our case with 33 previous publications to form a retrospective series including 35 cases of unilateral internal carotid artery agenesis with intercavernous anastomosis.
ISSN:1591-0199
2385-2011
DOI:10.1177/1591019916641317