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BMC Neurology

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01-12-2022 | Subarachnoid Hemorrhage | Case report

Ruptured peripheral superior cerebellar artery dissecting aneurysms associated with primitive trigeminal artery: a case report

Authors: Sayaka Ito, Kazushi Higuchi

Published in: BMC Neurology | Issue 1/2022

Abstract

Background

Persistent primitive trigeminal artery (PPTA) is a remnant of the carotid-vertebrobasilar anastomoses in the embryo. Although PPTAs are discovered incidentally in most cases, altered hemodynamics may lead to increased risk of stroke. To the best of our knowledge, no reports of PPTA associated with superior cerebellar artery (SCA) dissecting aneurysms have been published in the English language.

We describe the case of a patient who presented with subarachnoid hemorrhage (SAH) due to ruptured peripheral SCA dissecting aneurysms in association with PPTA. Additionally, we discuss the relationship between PPTA and peripheral SCA aneurysms and the treatment of peripheral SCA aneurysms.

Case presentation

A 43-year-old woman presented with acute onset of headache and nausea and admitted to our hospital. She was diagnosed with SAH due to ruptured left SCA dissecting aneurysm(s) and had undergone digital subtraction angiography. The left vertebral angiography showed aneurysmal dilatations of the left S2 segment (lateral pontomesencephalic segment) along with dissection through the segments of S2 and S3 (cerebellomesencephalic segment). It also showed ipsilateral PPTA. The left vertebral artery (VA) had normal caliber and the basilar artery segment proximal to the orifice of the left PPTA was not hypoplastic. The patient underwent proximal parent artery occlusion at the S2 segment via the left VA and was successfully treated with no neurological deficits having lasted 5 months.

Conclusions

The flow alteration with PPTA may have influenced the formation of SCA dissection in this patient. Further studies are needed to understand the etiology and treatment outcomes of peripheral SCA aneurysms better.

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Title: Ruptured peripheral superior cerebellar artery dissecting aneurysms associated with primitive trigeminal artery: a case report
Authors: Sayaka Ito
Kazushi Higuchi
Publication date: 01-12-2022
Publisher: BioMed Central
Keywords: Subarachnoid Hemorrhage
Angiography
Aneurysm
Aortic Dissection
Aneurysm
Subarachnoid Hemorrhage
Published in: BMC Neurology / Issue 1/2022
Electronic ISSN: 1471-2377
DOI: https://doi.org/10.1186/s12883-022-02741-y

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Ruptured peripheral superior cerebellar artery dissecting aneurysms associated with primitive trigeminal artery: a case report

Abstract

Background

Case presentation

Conclusions

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Background

Case presentation

Conclusions

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