Diagnostic pitfall: atypical cerebral venous drainage via the vertebral venous system.

Department of Neurology, University Hospital Charité, Humboldt University, Berlin, Germany.
American Journal of Neuroradiology (Impact Factor: 3.17). 04/2002; 23(3):408-11.
Source: PubMed

ABSTRACT We report a case of atypical cerebral venous drainage in a 38-year-old woman with symptoms of benign paroxysmal positional vertigo. Thrombosis of the left internal jugular vein and sigmoid sinus was suspected on the basis of spin-echo and time-of-flight MR findings, but multisection CT angiograms showed a patent sigmoid sinus and predominant drainage via the emissary veins toward the vertebral plexus, with only a minor contribution of the jugular veins. This case illustrates the variability of the venous anatomy in the craniocervical region.

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