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New variant of persistent primitive trigeminal artery associated with duplicated basilar artery: a radiological case

Mohammed Assaad Alnafie¹

¹Faculty of Medicine of Oran, University of Oran 1 Ahmed Ben Bella, BP 1510 El'Mnaouer, 31000, Oran, Algeria. jafar.hagge@gmail.com.

Surgical and Radiologic Anatomy : SRA

|January 19, 2023

Abstract

Purpose:

This article reports a new variant of the persistent primitive trigeminal artery. This variant does not exist in Salas and Saltzman classifications.

Methods:

We analyzed CTA images of a 39-year-old male patient using RadiAnt. This work had clinical and research purposes.

Results:

A persistent primitive trigeminal artery arose from left internal carotid artery termination. Its course was atypical, superior, and lateral to the sella turcica. At its end, it joined a duplicated basilar artery. These morphological features are new compared to Salas and Saltzman's variants.

Conclusion:

Anatomists, radiologists, and neurosurgeons must know this new variant. Angiographic analysis of this variant will keep the patient safe and perform the surgery. This new variant deserves to be considered in Salas and Saltzman classifications as a new type.

Keywords:

Arteriovenous malformation Computed tomography angiography Duplicated basilar artery Persistent primitive trigeminal artery Salas classification Saltzman classification

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