Figure 3.

Catheter venography of azygos and internal jugular veins (IJVs). Example of normal patent lumen of the azygos vein (A) and left internal jugular vein (IJV) (B). Significant stenosis of the distal left IJV (C) with prominent collateral vein (arrow).

Zivadinov et al. BMC Neurology 2013 13:151   doi:10.1186/1471-2377-13-151
Download authors' original image