Left internal carotid artery agenesis with trans-sellar collateral and a right aortic arch: Case report

Okawa, Masakazu; Higashi, Toshio; Komiyama, Masaki; Fukuda, Kenji; Abe, Hiroshi; Inoue, Tatsuo

doi:10.1177/1591019915609130

Cited by 13 publications

(5 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Thirty-six other cases of congenital absence of ICA with intercavernous anastomosis were identiﬁed in the literature. 2,4–34 Age and gender information was not given in one case. 14 We documented sex, laterality of the lesion, age at diagnosis, and presenting clinical signs/symptoms.…”

Section: Methodsmentioning

confidence: 99%

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

et al. 2016

View full text Add to dashboard Cite

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.

show abstract

Section: Methodsmentioning

confidence: 99%

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

et al. 2016

View full text Add to dashboard Cite

show abstract

“…Right internal carotid artery agenesis (ICA) is a developmental anomaly by the 24 mm embryonal stage [1] [2]. It is consistent with interrupted embryonic development of the ICA associated with absence of the ipsilateral carotid canal [3].…”

Section: Introductionmentioning

confidence: 99%

Agenesis of Internal Carotid Artery and Ischemic Stroke, One Case Report: A Review of Literature

Jennifer¹,

Martinez²,

Desbordes³

et al. 2018

OALib

View full text Add to dashboard Cite

Background: Agenesis of the internal carotid artery (ICA) is a rare anatomic variation of the cerebral circulation. A malfunction during the embryonic period is at stake. It is very often asymptomatic and therefore discovered incidentally. Association with ischemic stroke is exceptional. Physiopathology is uncertain; the hypothesis of a blood flow reversal is reported in the literature. The diagnosis is based on the absence of a carotid canal as revealed by CT scans at skull base level with bone settings. Other non-invasive techniques, including echo-Doppler of the neck vessels, can now make the diagnosis. Objective: Discuss the association between occurrence of an ischemic stroke in the left posterior sylvian territory and discovery of ipsilateral carotid agenesis. Case report: A 24-year-old female patient was prospectively recruited at DAX hospital center (France). Vascular risk factors involved active smoking of 8 pack-years and a combined estrogen/progestin contraceptive. Her family history included an uncle with heterozygote Factor V Leiden mutation. She presented a left upper limb sensorimotor deficit. Nuclear Magnetic Resonance Angiography (MRA) revealed a right superficial sylvian ischemic stroke associated with agenesis of the right internal carotid artery. CT scan at skull base level with bone settings showed absence of a right carotid canal, thus confirming agenesis. An opinion was then requested for an arteriography which showed an operative polygon of Willis, a sylvian artery or middle cerebral artery (MCA) irrigated by a very large right posterior communicating artery (PCOM) and the left anterior cerebral artery (ACA) supplied by the anterior communicating artery (ACOM), through the left carotid system. The right sylvian territory where stroke occurred was therefore supplied by the functional vertebrobasilar system. ECG and four-day meticulous monitoring detected no cardiac rhythm disorders.

show abstract

“…nilateral agenesis of the internal carotid artery (ICA) is a rare entity. ICA agenesis occurs when one or both ICA do not develop [1]. However, ICA agenesis could not present with symptoms because collateral pathways carry the blood to the brain [1,2].…”

mentioning

confidence: 99%

“…ICA agenesis occurs when one or both ICA do not develop [1]. However, ICA agenesis could not present with symptoms because collateral pathways carry the blood to the brain [1,2]. However, some individuals may have symptoms such as headaches, blurred vision, paralysis of some cranial nerves, recurrent seizures, and hemiparesis [2,3].…”

mentioning

confidence: 99%

“…Patients with ICA agenesis are at an increased risk of developing an aneurysm in cerebral vessels [5]. The prevalence of cerebral aneurysms in the general population is 1 to 5%; however, the risk for patients with ICA agenesis is estimated at 24 to 34% [1][2][3]. This increased risk is believed to be because of hemodynamic stress and abnormal flow through collateral circulations in these patients [6].…”

mentioning

confidence: 99%

See 1 more Smart Citation

Unilateral Agenesis of the Internal Carotid Artery: A Report of Two Rare Cases

Hadei

Ramezani

Taherian

2023

GMJ

View full text Add to dashboard Cite

Background: Internal carotid artery (ICA) agenesis occurs when one or both of the blood vessels that supply blood to the brain do not develop. Congenital agenesis of the ICA rarely occurs. It is usually asymptomatic but may sometimes associate with neurological symptoms such as migraine and pulsatile tinnitus. Moreover, differentiating it from occlusion of ICA is important in patients with stroke. Case Report: We report two cases (63-years-old man and 69-year-old woman) of asymptomatic unilateral ICA agenesis who were referred to our cardiovascular hospital for coronary artery bypass graft. Due to a suspicious history of transient ischemic attack, the patients underwent carotid ultrasonography. With findings suggestive of unilateral ICA agenesis at color Doppler, patients underwent computed tomography angiography that confirmed the diagnosis. Conclusion: Suspecting ICA agenesis at color Doppler imaging of the neck and differentiating it from occluded ICA at CT angiography is important for correct diagnosis and management of the patients.

show abstract

Left internal carotid artery agenesis with trans-sellar collateral and a right aortic arch: Case report

Cited by 13 publications

References 25 publications

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

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

Agenesis of Internal Carotid Artery and Ischemic Stroke, One Case Report: A Review of Literature

Unilateral Agenesis of the Internal Carotid Artery: A Report of Two Rare Cases

Contact Info

Product

Resources

About