Correct!
1. The frontal chest radiograph shows an abnormal mediastinal contour
The frontal chest radiograph shows normal lung volumes and clear lungs; no pleural abnormality is present. There is no evidence of cystic lung disease or basal fibrotic abnormalities. An abnormal mediastinal contour is present, best seen on the lateral projection, projected just posterior to the heart (Figure 2).
Figure 2. Frontal (A) and lateral (B) chest radiography shows normal lung volumes and clear lungs. An abnormal contour is present in the mediastinum, best seen on the lateral projection (arrows).
The patient subsequently underwent contrast-enhanced thoracic CT (Figure 3).
Figure 3. Axial (A-F) and coronal (G-J) enhanced thoracic CT.
Regarding the CT examination, which of the following is correct? (Click on the correct answer to proceed to the third of seven panels)