Correct!
5. The chest radiograph shows unilateral consolidation

The repeat chest radiograph shows peripheral left upper lobe consolidation; no consolidation is present in the left base or the entire right side and therefore the consolidation is not multifocal. No pleural abnormalities are present and the heart size is, and remains, normal.

Lyme disease and West Nile virus testing showed no abnormal findings. The patient underwent repeat chest CT (Figure 6).

Figure 6. Left: Representative images of axial enhanced chest CT displayed in lung windows performed 146 days after presentation. Right: video of axial enhanced CT in lung windows.

Regarding the assessment of the thoracic CT findings, which of the following is most accurate? (Click on the correct answer to be directed to the ninth of twelve pages)

1. The chest CT shows new subpleural left upper lobe consolation accompanied by numerous, small, randomly disseminated pulmonary nodules
2. The chest CT shows new subpleural left upper lobe consolation with new pleural effusion
3. The chest CT shows new subpleural left upper lobe consolation with complete resolution of previously noted pulmonary parenchymal abnormalities
4. The chest CT shows new subpleural left upper lobe consolation with significant regression of previously noted pulmonary parenchymal abnormalities
5. The chest CT shows that the new left upper lobe subpleural consolidation has areas of cavitation

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