Fig. 5
From: Multimodality imaging of paragangliomas of the head and neck
a Axial T2-weighted FSE MR images of the neck again demonstrate a well-defined, high signal soft tissue mass (white arrowhead) within the left carotid space, with multiple punctate foci of low signal, representing vascular flow voids. Punctate areas of hyperintensity (hemorrhage) as well as these flow voids produce a classic “salt and pepper” appearance. b Axial T1 post-contrast images demonstrate avid enhancement of the mass (white arrowhead), again splaying the proximal external and internal carotid arteries (white arrows). c 3D maximum intensity projection (MIP) time of flight angiography demonstrates a highly vascular tumor situated within the carotid bifurcation, with numerous enhancing feeding vessels branching from the adjacent ICA and ECA (white arrows)