Correct!
4. Thoracic CT shows that the focal right upper lobe opacity has grown over time
The direct comparison between the two thoracic CT studies (Figure 6) shows that the focal right upper lobe opacity has a similar morphology between the two thoracic CT examinations, but that the lesion has grown over time.
The CT scan in soft tissue windows was also evaluated (Figure 7).
Figure 7. Unenhanced thoracic CT performed at presentation (Figure 1, labeled “Current”) and 8 years earlier provided for comparison.
Which of the following represents the most accurate assessment of the comparison between the mediastinal findings on the presentation thoracic CT (Figure 1) and the comparison thoracic CT performed 8 years earlier (Figure 6)? (Click on the correct answer to be directed to the fifth of nine pages)