Fig. 18From: Pathology of the carotid spaceAcute jugular vein thrombosis. a Sagittal color flow Doppler ultrasound image demonstrates an occlusive hypoechoic thrombus (arrows) within the jugular vein. There is an absence of color fill within the vessel. b Axial contrast-enhanced CT image shows an expanded and non-enhancing right internal jugular vein (RIJ). Compare to the normal left internal jugular vein (LIJ). Note the retropharyngeal fluid (arrows), a common finding with acute jugular venous thrombosisBack to article page