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From the manuscript

Persistent primitive trigeminal artery associated with a cavernous carotid aneurysm. Case report and literature review.

Free full text article: Persistent primitive trigeminal artery associated with a cavernous carotid aneurysm. Case report and literature review.

Abstract
The persistent primitive trigeminal artery is the most common persistent carotid-vertebrobasilar anastomosis. Patients are usually asymptomatic and the persistent primitive trigeminal artery is commonly found incidentally on imaging. Rarely, they may present with symptoms of neurovascular conflict or cranial nerve compression syndromes as the artery may be intimately related to the cranial nerves. The basilar artery is often hypoplastic in this condition and blood supply to the posterior circulation is predominantly via the persistent primitive trigeminal artery. Recognizing the persistent primitive trigeminal artery is imperative as disease of the artery may result in ischemia of the posterior circulation. To date, there is no clear association between this artery and cerebral aneurysms. We present a rare case of a patient with a persistent primitive trigeminal artery and a concomitant cavernous carotid aneurysm together with a literature review.






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1. Computed tomography angiogram

2. cavernous carotid aneurysm

3. magnetic resonance angiography

4. magnetic resonance imaging

5. persistent primitive trigeminal artery

6. vertebrobasilar anastomosis


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