Correct!
3. The chest CT shows new subpleural left upper lobe consolation with complete resolution of previously noted pulmonary parenchymal abnormalities
The repeat chest CT shows subpleural left upper lobe consolation with significant regression of previously noted pulmonary parenchymal abnormalities; some ground-glass opacity can faintly be seen in the right upper lobe and left apex, again peripheral- even frankly subpleural- in distribution. No pulmonary nodules are present and no new pleural or mediastinal abnormalities are seen. No areas of cavitation are noted. Of note the left upper lobe consolidation shows some perilobular opacity on its margins, both superiorly and inferiorly. The evolution of the pulmonary findings from the 3 chest CTs is shown in Figure 7.
Figure 7. Comparison of the presentation chest CT (A-D), follow up chest CTs performed 86 (E-F) and 146 (I-L) following presentation shown at selected levels shows the transient and migratory areas of non-segmental peripheral and frankly subpleural areas of ground-glass opacity and consolidation.
At this point, which of the following does not represent least likely diagnosis for this patient? (Click on the correct answer to be directed to the tenth of twelve pages)