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[Pulsatile Tinnitus due to an Aberrant Internal Carotid Artery in the Middle Ear:A Case Report]

Kazuyuki Kuwayama1, Junichiro Satomi, Tadashi Yamaguchi

  • 1Department of Neurosurgery, The University of Tokushima Graduate School of Medicine.

No Shinkei Geka. Neurological Surgery
|April 18, 2017
PubMed

Insights

A rare case of aberrant internal carotid artery in the middle ear was found in a 30-year-old man with pulsatile tinnitus. Advanced imaging confirmed the aberrant carotid artery

Area of Science:

  • Vascular anatomy
  • Radiology
  • Otolaryngology

Background:

  • Aberrant internal carotid artery (ICA) is a rare congenital anomaly.
  • It can present with various symptoms, including pulsatile tinnitus.
  • Diagnosis often relies on advanced imaging techniques.

Observation:

  • A 30-year-old male presented with pulsatile tinnitus.
  • Magnetic Resonance Angiography (MRA) and 3D Computed Tomography Angiography (3D-CTA) were performed.
  • These imaging modalities identified an aberrant course of the internal carotid artery within the middle ear.

Findings:

  • 3D-CTA demonstrated the aberrant internal carotid artery traversing the foramen.
  • This finding confirms a rare anatomical variation.
  • The aberrant vessel was located in close proximity to middle ear structures.

Implications:

  • Accurate diagnosis of aberrant ICA is crucial for surgical planning.
  • Understanding this anomaly aids in managing associated symptoms like pulsatile tinnitus.
  • This case highlights the importance of detailed radiographic assessment in suspected vascular anomalies.

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