Figure 8. Enhanced CT scan in a 38-year-old man with silicosis showing enlarged right and left lower paratracheal (arrows), subaortic (open arrows), and para-aortic (thin arrow) nodes with eggshell calcification. Note calcified bilateral intrapulmonary nodes (arrowheads). A = ascending aorta, D = descending aorta, V = superior vena cava.