Figure 6. Paraganglioma in a 23-year-old man. Coronal reformatted image from a contrast-enhanced multidetector CT study of the thoracic spine shows an extrapleural spindle-shaped mass (M) with relatively homogeneous attenuation in the left paravertebral region. The apparently noninvasive well-demarcated mass was discovered at resection to be attached to the sympathetic nerve (arrow).