Correct!
1. Thoracic CT scan

Bronchoscopy with transbronchial biopsy is reasonable, but like VATS, is probably too invasive at this juncture. A thoracic CT scan was performed (Figure 2).

Figure 2. Representative axial images from the thoracic CT scan in lung windows.

Which of the following is the best interpretation of the thoracic CT scan? (Click on the corect answer to be directed to the fifth of eight pages)

1. Basilar fibrotic changes with honeycombing
2. Basilar ground-glass opacities and fibrosis with multiple cysts
3. Multiple basilar lung cavities with ground-glass with ground-glass opacities
4. 1 and 3
5. All of the above

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