Fig. 3
From: Multimodality imaging of paragangliomas of the head and neck
Axial CT (a) demonstrates widening right jugular bulb, with a moth-eaten appearance of the walls of the right jugular foramen (white arrow). Axial attenuation-corrected PET (b) demonstrates marked FDG uptake within the jugular foramen consistent with hypermetabolic activity (white arrowhead). T1-weighted post-contrast MR (c) demonstrates a well-defined, enhancing, expansile mass centered in the right jugular foramen (curved white arrow)