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AJNR - American Journal of Neuroradiology

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American Journal of Neuroradiology 21:572-577 (3 2000)
© 2000 American Society of Neuroradiology

ARTICLE

The Persistent Stapedial Artery

Richard Silbergleit^,a, Douglas J. Quint^a, Bharat A. Mehta^a, Suresh C. Patel^a, Joseph J. Metes^a and Samir E. Noujaim^a

^a From the Department of Diagnostic Radiology and Medical Imaging, Henry Ford Hospital, Detroit, MI (R.S., B.A.M., S.C.P.); the Department of Radiology, University of Michigan Hospitals, Ann Arbor (D.J.Q.); the Department of Radiology, St. John's Hospital and Medical Center, Detroit (J.J.M.); and the Department of Radiology, William Beaumont Hospital, Royal Oak, MI (S.E.N.).

Summary: The persistent stapedial artery is a rare congenital vascular anomaly that may present as a pulsatile middle ear mass or that may appear as an incidental finding. Five cases of persistent stapedial artery are presented. The CT findings include the absence of the ipsilateral foramen spinosum and a soft-tissue prominence in the region of the tympanic segment of the facial nerve. Three cases were associated with an aberrant internal carotid artery. Imaging identification of this variant may obviate unnecessary surgery and may help in planning surgical or endovascular interventions.

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