Presentation
Repeated fits and headache.
Patient Data
Age: 30 years
Gender: Male
From the case:
Persistent trigeminal artery
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Axial T2

A large calibered artery is seen arising from the junction between the petrous and cavernous segments of the left ICA, passes posteriorly and medially to form the basilar artery tip, with the latter is seen giving rise to the normal calibered PCAs.
Hypoplastic caudal basilar artery and distal vertebral arteries.