PT - JOURNAL ARTICLE AU - Olaf Hoffmann AU - Randolf Klingebiel AU - Johann S. Braun AU - Juri Katchanov AU - José M. Valdueza TI - Diagnostic Pitfall: Atypical Cerebral Venous Drainage via the Vertebral Venous System DP - 2002 Mar 01 TA - American Journal of Neuroradiology PG - 408--411 VI - 23 IP - 3 4099 - http://www.ajnr.org/content/23/3/408.short 4100 - http://www.ajnr.org/content/23/3/408.full SO - Am. J. Neuroradiol.2002 Mar 01; 23 AB - Summary: 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.