Figure 7d. Lung changes in a 41-year-old man with adenocarcinoma treated with mediastinal and supraclavicular radiation portals. (a) Pretreatment chest radiograph shows a mass in the right lower lobe as well as right paratracheal lymph nodes (arrow). (b, c) CT scans obtained 2 months after completion of radiation therapy show patchy consolidation and ground-glass attenuation in the lower lobes (b) and both lung apices (c) conforming to the supraclavicular portals. (d) Chest radiograph obtained 18 months after b and c demonstrates advanced radiation fibrosis in the right lung.