case_images: PMC4367047_01
case_images: Axial unenhanced computed tomography (CT) scan of the temporal bone - bone-window - (a) and coronal reformatted CT image of the skull base (b) in the same patient, showing cystic density lesion causing enlargement of the right jugular foramen (arrows)
case_images: JNSBM-6-236-g001.jpg
case_images: PMC4367047_01_JNSBM-6-236-g001.jpg
case_images: F1
case_images: No intralesional calcifications or erosions of the adjacent bone were noted [Figure 1a and b].
case_images: Axial T2-weighted images (a), axial fluid-attenuated inversion-recovery (FLAIR) image (b), coronal T2-weighted image (c), coronal precontrast T1-weighted image (d) and coronal postcontrast T1-weighted image (e) showing nonenhancing cystic intensity lesion in the right jugular foramen (arrows). Note heterogeneous signal intensity on FLAIR image (arrow)
case_images: JNSBM-6-236-g002.jpg
case_images: PMC4367047_01_JNSBM-6-236-g002.jpg
case_images: F2
case_images: Further evaluation was performed with magnetic resonance imaging (MRI), which indicated an oval lobulated nonenhancing lesion causing expansion of the JF without any bone erosions [Figure 2a-e].
case_images: Axial diffusion-weighted image shows hyperintense signal of the right jugular foramen lesion (arrow), suggesting restricted diffusion within the lesion
case_images: JNSBM-6-236-g003.jpg
case_images: PMC4367047_01_JNSBM-6-236-g003.jpg
case_images: F3
case_images: It was hyperintense on T2-weighted and hypointense on T1-weighted images and showed very bright signal intensity on DWI [Figure 3].