Posterior-draining dural carotid cavernous fistulae: a possible cause of computed tomographic angiography negative isolated third nerve palsy

  • George Wong | georgewong@surgery.cuhk.edu.hk Division of Neurosurgery, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong.
  • Simon Chun Ho Yu Department of Imaging and Interventional Radiology, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong.
  • Wai Sang Poon Division of Neurosurgery, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong.

Abstract

Computed tomographic angiography (CTA) is a well-established non-invasive investigation for this neurological presentation to exclude intracranial aneurysms. However, dural arteriovenous fistulae with anterograde venous drainage only can be missed by CTA. Here we reported two patients with painful complete third nerve palsy and dural carotid cavernous fistulae with anterograde venous drainage only missed by CTA. The natural history and management option are discussed. In patients with persistent symptoms or without vasculopathic risk factors, magnetic resonance angiography (MRA) or digital subtraction angiography (DSA) should be considered to exclude the diagnosis.

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Published
2011-11-09
Section
Case Reports
Keywords:
angiography, carotid cavernous fistula, computed tomography, dural arterioveous fistula, oculomotor nerve.
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How to Cite
Wong, G., Ho Yu, S. C., & Poon, W. (2011). Posterior-draining dural carotid cavernous fistulae: a possible cause of computed tomographic angiography negative isolated third nerve palsy. Clinics and Practice, 1(4), e110. https://doi.org/10.4081/cp.2011.e110