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Subarcuate Artery and Canal: An Important Anatomic Variant

Akyol, Yakup MD,; Galheigo, Diogo MD,; Massimore, Marissa; Fatterpekar, Girish MD

Journal of Computer Assisted Tomography: November/December 2011 - Volume 35 - Issue 6 - p 688–689
doi: 10.1097/RCT.0b013e318234232a
Case Report

An aberrant subarcuate artery and its related canal are rare. The presence of this variation has a surgical significance, that is, risk of hemorrhage, if accidentally nicked. It is therefore important to be aware of this entity, and its relative anatomy, to avoid any untoward complication. We present a case of a 29-year-old man who presented with hearing loss after trauma. High-resolution computed tomographic scan of the temporal bone demonstrated an enlarged subarcuate canal.

From the Department of Radiology, NYU School of Medicine, New York, NY.

Received for publication August 12, 2011; accepted August 23, 2011.

Reprints: Girish Fatterpekar, MD, Section of Neuroradiology, NYU School of Medicine, New York, NY 10016 (e-mail:

The authors report no conflicts of interest.

© 2011 Lippincott Williams & Wilkins, Inc.