Bilateral Agenesis of the Internal Carotid Artery Associated with Basilar Artery Aneurysm Treated via the Endovascular Route

Barbosa, Lívia Guidoni de Assis; Barbosa, Leandro A.; Pimentel, D.P.; Mata, B.E.L.; Guerra, Llibre; Viana, Lorena Souza

doi:10.1177/159101991001600112

Cited by 12 publications

(8 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…ACOM is the most frequent site of aneurysm formation in agenesis of the ICA [2] . Aneurysms were also located in the PCOM, MCA, basilar artery, or basilar tip in this anomaly [9 , 10 , 12] . However, aneurysm at the SCA's origin associated with the unilateral ICA's agenesis has not been reported before in the literature.…”

Section: Discussionmentioning

confidence: 71%

Unilateral agenesis of internal carotid artery associated with superior cerebellar artery aneurysm and anomalous origin of ophthalmic artery arising from the ipsilateral posterior communicating artery

Lee¹

2020

Radiology Case Reports

View full text Add to dashboard Cite

Congenital agenesis of the unilateral internal carotid artery is a rare anomaly. The agenesis of the internal carotid artery is associated with a higher incidence of intracranial aneurysms. This report describes a rare case of internal carotid artery agenesis associated with an aneurysm of the left superior cerebellar artery in a 52-year-old woman. The left middle cerebral artery was supplied from the vertebrobasilar system through the dilated left posterior communicating artery associated with anomalous origin of the left ophthalmic artery from the left posterior communicating artery. This report demonstrates a rare combination of left internal carotid artery agenesis with associated intracranial aneurysm and anomalous origin of the ophthalmic artery, discussion of embryogenesis, clinical significance, and imaging findings.

show abstract

Section: Discussionmentioning

confidence: 71%

Unilateral agenesis of internal carotid artery associated with superior cerebellar artery aneurysm and anomalous origin of ophthalmic artery arising from the ipsilateral posterior communicating artery

Lee¹

2020

Radiology Case Reports

View full text Add to dashboard Cite

show abstract

“…Type B cases involve the ipsilateral ACA and MCA, with the supply of blood through the ACoA. Type C cases show bilateral agenesis of the ICA, with the supply to the anterior circulation through carotid-vertebrobasilar anastomoses; a review of the literature found that this is generally accomplished through hypertrophy of the PCoA, 9 , 14) and the present case is thought to correspond to type C. Type D cases show unilateral agenesis of the cervical portions of the ICA with an intercavernous communication to the ipsilateral carotid siphon from the contralateral cavernous ICA. In type E, small ACAs are supplied by bilateral hypoplastic ICAs, while the MCAs are supplied by enlarged PCoAs.…”

Section: Discussionmentioning

confidence: 99%

Segmental Aplasia of Bilateral Internal Carotid Arteries Accompanied by Intracranial Aneurysms: A Case Report

Ohtani

Iijima

Aishima

et al. 2017

NMC Case Report Journal

View full text Add to dashboard Cite

A 68-year-old woman presented with segmental aplasia of bilateral internal carotid arteries accompanied by unruptured intracranial aneurysms. The abnormality was discovered incidentally at the age of 44 years. Cerebral angiography showed occlusion of bilateral internal carotid arteries, and the carotid territory was supplied by each posterior communicating artery with small intracranial aneurysms. Endovascular treatment for the intracranial aneurysms was planned. However, the patient did not want to undergo the endovascular procedure because of the increased risk due to the associated bilateral carotid abnormalities. Cerebral angiography was performed again at the age of 66 years, and the size of the aneurysms had not changed. Based on their segmental identity, aplasia of segment 6 of the internal carotid artery (ICA) including the first portion of the ophthalmic artery was observed bilaterally.

show abstract

“…Therefore, our patient was offered microsurgical management, which she declined. Of the seven reported cases of bilateral carotid hypoplasia, only one underwent successful clipping of the aneurysm [ 18 ], whereas six refused treatment when informed about the risks of intervention.…”

Section: Discussionmentioning

confidence: 99%

Bilateral hypoplasia of the internal carotid artery, presenting as a subarachnoid hemorrhage secondary to intracranial aneurysmal formation: a case report

Siddiqui

Sobani

2012

J Med Case Reports

View full text Add to dashboard Cite

IntroductionHypoplasia of the internal carotid artery is a rare congenital anomaly, with only 24 cases of bilateral internal carotid artery hypoplasia reported to date. Here, we present the case of a 48-year-old woman with bilateral internal carotid artery hypoplasia. She had a collateral circulation through the vertebrobasilar system; however given the high pressure flow she developed aneurysmal formations in the posterior communicating artery. To the best of our knowledge, only seven reported cases of internal carotid artery hypoplasia have been associated with intracranial aneurysmal formations.Case presentationA 48-year-old Sindhi woman from Karachi, Pakistan, presented to our emergency room with a sudden onset headache and was diagnosed as having a subarachnoid hemorrhage. Digital subtraction angiography revealed hypoplasia of her internal carotid artery bilaterally with an associated fusiform aneurysm of the posterior communicating artery. Our patient declined any operative intervention in view of the associated risks. She died of a rebleed six weeks after her initial presentation.ConclusionBilateral internal carotid artery occlusions can present with subarachnoid hemorrhages due to associated intracranial aneurysm formation. Prior knowledge about the possible existence of such angioarchitectural arrangement is mandatory for an early diagnosis. However, even with prompt diagnosis, management options with acceptable risk-benefit equations are still unavailable.

show abstract

Bilateral Agenesis of the Internal Carotid Artery Associated with Basilar Artery Aneurysm Treated via the Endovascular Route

Cited by 12 publications

References 10 publications

Unilateral agenesis of internal carotid artery associated with superior cerebellar artery aneurysm and anomalous origin of ophthalmic artery arising from the ipsilateral posterior communicating artery

Unilateral agenesis of internal carotid artery associated with superior cerebellar artery aneurysm and anomalous origin of ophthalmic artery arising from the ipsilateral posterior communicating artery

Segmental Aplasia of Bilateral Internal Carotid Arteries Accompanied by Intracranial Aneurysms: A Case Report

Bilateral hypoplasia of the internal carotid artery, presenting as a subarachnoid hemorrhage secondary to intracranial aneurysmal formation: a case report

Contact Info

Product

Resources

About