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Journal of Korean Neurosurgical Society > Accepted Articles

doi: https://doi.org/10.3340/jkns.2024.0107    [Accepted]
Aneurysm at the Trunk of the Medial-Type Persistent Trigeminal Artery Associated with Facial Pain : A Rare Case Report
Na Il Shin , Hyung-Jin Lee
Department of Neurosurgery, Daejeon St. Mary’s Hospital, The Catholic University of Korea, Daejeon, Korea
Correspondence  Hyung-Jin Lee ,Tel: +82-42-220-9525, Email: kope95@gmail.com
Received: May 31, 2024; Revised: August 3, 2024   Accepted: December 17, 2024.  Published online: January 17, 2025.
ABSTRACT
Persistent trigeminal artery (PTA) is the most common residual manifestation of persistent carotid–vertebrobasilar anastomosis, with the medial-type (intrasellar or sphenoidal) PTA being exceptionally rare. Aneurysms originating from the PTA trunk are not common. We present a unique case of an aneurysm located at the trunk of the medial-type PTA in a patient presenting with trigeminal neuralgia who successfully received endovascular treatment. Furthermore, we discuss the anatomical features of this aneurysm and relevant reports, and examine the possible pathomechanism of the associated pain.
Key Words: Aneurysm · Trigeminal artery · Persistent trigeminal artery
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