PMC3891083_01
On the fifth day of hospitalization, chest radiography showed a newly developed air-cyst and air fluid level in the right lower lung.
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F1
On the fifth day of hospitalization, chest radiography revealed an air cyst and air fluid level in the right lower lung (Figure 1).
On the ninth day of hospitalization, (A) Chest radiography showed the increased size of the air-cyst and air fluid level in the right lower lung. (B) Enhanced chest CT scan showed a 9x11 cm sized, thin-walled cavitary lesion, with an air-fluid level, pleural effusion and consolidation in the right lower lung.
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F2
On the ninth day, the size of the air-cyst had rapidly increased to about 9x11 cm in size; the air fluid level had also increased (Figure 2A).