Figure 4: Contrast-enhanced computed tomography scan of the thorax: (a) Axial section, mediastinal window, showing large heterogeneously enhancing left perihilar mass lesion seen is extending into the mediastinum. (b) Axial section, lung window, and (c) Coronal reformatted image, lung window, showing large area of consolidation with peripheral lung parenchyma showing areas of ground-glass opacities and septal thickening. There are poorly defined small nodules and subtle areas of ground-glass opacities in the right lung also; note, the leftward pull of mediastinum