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Case Reports in Otolaryngology
Volume 2013, Article ID 275820, 4 pages
http://dx.doi.org/10.1155/2013/275820
Case Report

Persistent Primitive Trigeminal Artery: An Unusual Cause of Vascular Tinnitus

Department of Radiodiagnosis, All India Institute of Medical Sciences (AIIMS), Ansari Nagar, New Delhi 110029, India

Received 24 August 2013; Accepted 8 October 2013

Academic Editors: A. Gallo, A. Rapoport, and K. Takano

Copyright © 2013 Ananya Panda et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Pulsatile tinnitus is generally of vascular origin and can be due to arterial, venous, or systemic causes. While certain congenital anatomical variants and arterial vascular loops have been commonly found in symptomatic patients undergoing imaging, persistent primitive trigeminal artery in association with isolated tinnitus is unusual. Thus we report a patient with unilateral isolated pulsatile tinnitus who was evaluated with magnetic resonance angiography and was found to have a persistent primitive trigeminal artery. We also briefly discuss vascular tinnitus as well as the embryology, imaging, and classification of persistent primitive trigeminal artery with the clinical implications.