Unilateral Agenesis of Internal Carotid Artery with Ophthalmic Artery Arising from Posterior Communicating Artery

Naeini, Ramin M.; De, Jitakshi; Satow, Tetsu; Benndorf, Goetz

doi:10.2214/ajr.184.2.01840571

Cited by 35 publications

(26 citation statements)

References 3 publications

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“…Tubbs et al [19] reported accessory pericallosal arteries to the medial frontoparietal lobe originating from the posterior inferior cerebellar and posterior cerebral arteries. The origin of the ophthalmic artery from the posterior communicating artery has also been reported in a patient with ICA agenesis [10]. The ICA may give rise to the anterior inferior cerebellar artery [3,6,15], posterior inferior cerebellar artery [1, 5, Fig.…”

Section: Discussionmentioning

confidence: 88%

An aberrant cerebellar artery originating from the internal carotid artery

et al. 2011

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The aberrant origin of the cerebellar arteries from anterior cerebral circulation is a quite rare vascular variation. Herein, we report a 52-year-old white female with angiographically occult subarachnoid hemorrhage. Left superior and anterior inferior cerebellar arteries were not detected. An aberrant cerebellar artery was noted to arise from the left cavernous internal carotid artery and terminated in the distribution of the ipsilateral superior and anterior inferior cerebellar arteries. This variant artery might likely have resulted from an abnormal regression of fetal anterior-to-posterior circulation connections, and may represent a fetal-type cerebellar artery. A review of the anatomy and clinical significance of the variant is presented.

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Section: Discussionmentioning

confidence: 88%

An aberrant cerebellar artery originating from the internal carotid artery

et al. 2011

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“…The clinical symptoms may be related with associated vascular insufficiency and/or intracranial ischemia due to changes in collateral flow. Cases may present with recurrent headaches, blurring vision, loss of audition, hemi-paresis with or without cranial nerve palsy [2356]. Patients may also present with subarachnoid hemorrhage as a complication of an associated aneurysm.…”

Section: Discussionmentioning

confidence: 99%

Congenital Agenesis of Right Internal Carotid Artery: A Report of Two Cases

Kahraman

Özdemi̇r

et al. 2016

Journal of the Belgian Society of Radiology

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Congenital unilateral agenesis of the internal carotid artery (ICA) is a rare anomaly. Due to proper sufficient collateral circulation via the circle of Willis most cases are asymptomatic, but patients can also present with ischemic or hemorrhagic cerebrovascular insults. The absence of the bony carotid canal is essential to differentiate this anomaly from chronic ICA occlusion. Awareness of this situation by clinicians and radiologists is essential because these patients have an increased incidence of various intracranial pathologies. We report two cases of this rare developmental congenital abnormality occurring in two young patients and describe the presentation, diagnosis, determined developmental causes, imaging findings, and complications.

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“…7 The ICA originates from the cranial portion of the dorsal aorta and the terminal segments of the primitive third aortic arch and is fully developed by around the sixth week. 8 Agenesis or aplasia of the internal carotid artery is therefore related to atresia or involution of the third aortic arch and the distal portion of the dorsal aorta, while still in the initial embryonic phase. In turn, the base of the skull begins to form after the fifth or sixth week of fetal life.…”

Section: Discussionmentioning

confidence: 99%

Bilateral internal carotid artery agenesis: a case report

et al. 2014

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Agenesis of the internal carotid artery (ICA) is defined as a congenital absence of the carotid canal and occurs in less than 0.01% of the population. This anomaly is usually diagnosed as an incidental finding or after a cerebrovascular event. We present the case of a 36-year-old woman, with bilateral agenesis of the ICA who had suffered a subarachnoid hemorrhage due to ruptured aneurysm of the basilar artery. Therefore, agenesis of the ICA is a condition that, although rare, should be considered since there is a risk of coexistence with other life-threatening conditions such as aneurysms.Keywords: internal carotid artery; carotid artery diseases; intracranial aneurysm. ResumoAgenesia da artéria carótida interna (ACI) é definida como uma ausência congênita do canal carotídeo e ocorre em menos de 0,01% da população. O diagnóstico dessa anomalia ocorre geralmente como um achado incidental ou depois de um evento cerebrovascular. Apresentamos o caso de uma mulher de 36 anos, hipertensa e tabagista, com agenesia bilateral de ACI, que abriu quadro com hemorragia subaracnoide decorrente de rotura de aneurisma de artéria de basilar. A agenesia da ACI é, portanto, uma condição que, embora rara, deve ser lembrada por estar associada a outras más formações potencialmente fatais, como os aneurismas cerebrais.Palavras-chave: artéria carótida interna; doenças das artérias carótidas; aneurisma intracraniano.

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Unilateral Agenesis of Internal Carotid Artery with Ophthalmic Artery Arising from Posterior Communicating Artery

Cited by 35 publications

References 3 publications

An aberrant cerebellar artery originating from the internal carotid artery

An aberrant cerebellar artery originating from the internal carotid artery

Congenital Agenesis of Right Internal Carotid Artery: A Report of Two Cases

Bilateral internal carotid artery agenesis: a case report

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