Correct!
2. The chest radiograph also shows extensive left thoracic volume loss
The frontal chest radiograph shows extensive left thoracic volume loss, evidenced by a small left thorax in general and marked shift of the cardiomediastinal structures to the left. No clear left lower lobe bronchopneumonia is seen, although the entire left thoracic base is opacified. No left diaphragm is seen on the lateral projection. The aortic arch is located in its normal, left-sided position. The visible portions of the right pulmonary artery appear normal in size. While the left superior mediastinum appears somewhat prominent on the frontal projection, the retrosternal space on the lateral projection is clear- no anterior mediastinal mass is seen.
Which of the following represent appropriate differential diagnostic considerations for the chest radiographic pattern present? (Click on the correct answer to proceed to the fourth of nine pages)