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Related Experiment Videos

Persistent primitive otic artery with IC-cavernous aneurysm.

Akira Matsushita1, Kiyoyuki Yanaka, Akio Hyodo

  • 1Department of Neurosurgery, Institute of Clinical Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan.

Journal of Clinical Neuroscience : Official Journal of the Neurosurgical Society of Australasia
|December 5, 2002
PubMed
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A rare case of an unruptured internal carotid artery aneurysm, linked to a persistent primitive otic artery variant, was successfully treated using endovascular embolisation in a 48-year-old woman.

Area of Science:

  • Vascular neurology
  • Interventional neuroradiology
  • Cerebrovascular diseases

Background:

  • Aneurysms of the internal carotid artery (ICA) can pose significant risks.
  • Vascular anomalies, such as persistent primitive arteries, are uncommon but important considerations in neurovascular imaging.
  • The persistent primitive otic artery (PPOA) is a rare variant of the fetal circulation.

Observation:

  • A 48-year-old woman presented with an unruptured internal carotid artery aneurysm.
  • This aneurysm was found in association with a rare variant: the persistent primitive otic artery.
  • The PPOA variant may influence cerebral blood flow dynamics and aneurysm formation.

Findings:

  • The unruptured ICA aneurysm was successfully treated with endovascular embolisation.

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  • This minimally invasive technique provided a definitive treatment for the patient.
  • The successful embolisation highlights the efficacy of endovascular methods for complex cerebrovascular lesions.

    • Implications:

    • This case expands the understanding of rare cerebrovascular conditions and their management.
    • It suggests a potential link between the persistent primitive otic artery variant and internal carotid artery aneurysm formation.
    • Endovascular embolisation is a viable and effective treatment option for such rare aneurysms.