Correct!
3. The thoracic CT shows marked progression in the left base process
The thoracic CT, performed nearly one year after initial presentation, shows relatively little interval change in the left lower lobe ground-glass opacity, consolidation, and cavitation. No new lymph node enlargement in either the peribronchial or mediastinal regions is noted, no new lung opacities on either side are seen, and no pleural abnormality has developed. The left lower lobe airways remain patent. The left apical nodule remains stable. The left base opacity, however, has not regressed.
After the repeat chest CT showed no regression on the left base process, percutaneous transthoracic needle biopsy of the solid-appearing portion of the left lower lobe process was performed.
Which of the following represents an appropriate differential diagnostic consideration for a cavitary pulmonary lesion? (Click on the correct answer to proceed to the eleventh and final page)