Presentation
Incidental finding on investigation of dizziness.
Patient Data
Age: 45 years
Gender: Male
From the case:
Persistent trigeminal artery
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Study shows a persistent right trigeminal artery giving rise to the posterior circulation with hypoplastic vertebrobasilar system present.
Case Discussion
Persistent trigeminal artery is a persistent carotid-vertebrobasilar anastomosis. Fetal trigeminal artery supplies the posterior circulation in utero before the development of the vertebrobasilar system.
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