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Right persistent trigeminal artery variant (PTAV) and tiny left PTA associated with bilateral ophthalmic arteries arising from the cavernous segments of the internal carotid arteries

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Abstract

Persistent trigeminal artery (PTA) and its variant (PTAV) are the most prevalent types of carotid-vertebrobasilar anastomosis, but bilateral anastomoses are exceedingly rare. We report a case of a right PTAV and tiny left lateral-type PTA from which the cerebellar artery (presumed anterior inferior cerebellar artery) arose. And also, bilateral ophthalmic arteries arose from the cavernous segments of the internal carotid arteries and entered the orbits via the superior orbital fissures. Selective cerebral angiography, especially 3-dimensional angiography, is superior to magnetic resonance (MR) angiography to identify rare variations of the cerebral arteries. Careful observation of MR angiographic source images is important for identifying unique arterial coursing.

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Acknowledgements

We thank Rosalyn Uhrig, M.A., for editorial assistance in the preparation of this manuscript.

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Authors and Affiliations

  1. Departments of Diagnostic Radiology, Saitama Medical University International Medical Center, 1397-1 Yamane, Hidaka, Saitama, 350-1298, Japan

    Akira Uchino

  2. Department of Endovascular Neurosurgery, Saitama Medical University International Medical Center, 1397-1 Yamane, Hidaka, Saitama, 350-1298, Japan

    Hiroaki Neki & Fumitaka Yamane

Authors
  1. Akira Uchino
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  2. Hiroaki Neki
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  3. Fumitaka Yamane
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Correspondence to Akira Uchino.

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Uchino, A., Neki, H. & Yamane, F. Right persistent trigeminal artery variant (PTAV) and tiny left PTA associated with bilateral ophthalmic arteries arising from the cavernous segments of the internal carotid arteries. Surg Radiol Anat 39, 1279–1283 (2017). https://doi.org/10.1007/s00276-017-1862-7

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  • DOI: https://doi.org/10.1007/s00276-017-1862-7

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