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AJNR - American Journal of Neuroradiology

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A Review of Two Cases of Fenestrated Internal Jugular Veins as Seen by CT Angiography

Alexander J. Towbin^a and Emanuel Kanal^a

^a From the Department of Radiology, University of Pittsburgh Medical Center, Pittsburgh, PA

View larger version (114K): [in a new window]   FIG 1. The appearance of an internal jugular vein on CTA images is characteristic. The vein begins its course with a single lumen (A, B). It then bifurcates forming two distinct lumena (C). As the vein continues caudally, it once again becomes a single vessel (D, E). Panel F shows the fenestrated internal jugular vein reformatted in a single sagittal, oblique plane.

View larger version (114K): [in a new window]   FIG 2. The fenestrated internal jugular vein in our second patient is seen in a single oblique plane.