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Related Experiment Videos

Vertebral artery aneurysm causing contralateral cerebellopontine angle mass effect.

Peter Monksfield1, Pablo Martinez Devesa, Andrew Molyneux

  • 1Department of Otolaryngology, Radcliffe Infirmary, Oxford, UK. pmonksfield@talk21.com

Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [And] European Academy of Otology and Neurotology
|May 14, 2005
PubMed
Summary

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Letter to the Editor. Findings of ISAT versus ISAT-2: indications for endovascular treatment of ruptured aneurysms.

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A rare vertebral artery aneurysm mimicked a cerebellopontine angle tumor. Endovascular coiling successfully treated the aneurysm, leading to patient recovery.

Area of Science:

  • Neurology
  • Vascular Surgery
  • Radiology

Background:

  • Vertebral artery aneurysms can present atypically, sometimes mimicking tumors in critical locations.
  • The cerebellopontine angle is a complex anatomical region where vascular and neoplastic lesions can present with similar symptoms.

Observation:

  • A 70-year-old female presented with progressive right-sided sensorineural hearing loss and facial palsy.
  • Magnetic resonance imaging (MRI) and computed tomography angiography (CTA) revealed a vertebral artery aneurysm at the cerebellopontine angle, initially suspected as a tumor.

Findings:

  • The vertebral artery aneurysm was successfully treated with endovascular coiling.
  • The patient experienced a satisfactory neurological recovery with no deterioration in facial nerve function at 3-month follow-up.

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Implications:

  • Computed tomography angiography is crucial for differentiating vascular lesions from tumors in the cerebellopontine angle.
  • Endovascular coiling is an effective management strategy for intracranial aneurysms in this location, offering a minimally invasive treatment option.