1. Capricious Behavior of Pulmonary Bullae Developing Fluid
Eli H. Rubin, M.D., F.C.C.P., Abraham S. Buchberg, M.D., F.C.C.P. 
Diseases of the Chest 
Volume 54, Issue 6, Pages (December 1968)
DOI: /chest
Copyright © 1968 The American College of Chest Physicians Terms and Conditions

2. FIGURE 1A (left)
Case 1, June 28, Large bulla in left upper lobe partly filled with fluid. Right lung hyperilluminated; hyperilluminated space in right upper lobe; delicate reticulations in hyperlucent lower lobes.
Diseases of the Chest  , DOI: ( /chest )
Copyright © 1968 The American College of Chest Physicians Terms and Conditions

3. FIGURE 1B (right)
October 27, Homogeneous density in region of left upper lobe at site of previous bulla; remainder of lung fields unchanged.
Diseases of the Chest  , DOI: ( /chest )
Copyright © 1968 The American College of Chest Physicians Terms and Conditions

4. FIGURE 1C (left)
Case 1, November 7, Bulla in right upper lobe partly filled with fluid. Bulla containing fluid in left upper lobe no longer visible; remainder of lung fields unchanged.
Diseases of the Chest  , DOI: ( /chest )
Copyright © 1968 The American College of Chest Physicians Terms and Conditions

5. FIGURE 1D (right)
Case 1, July 13, Fluid in bulla in right upper lobe has disappeared leaving conspicuous lower margin; remainder of lung fields show no change.
Diseases of the Chest  , DOI: ( /chest )
Copyright © 1968 The American College of Chest Physicians Terms and Conditions

6. FIGURE 2A (left)
Case 2, October 12, Scattered infiltrations in both lungs; large bulla occupying left upper lobe.
Diseases of the Chest  , DOI: ( /chest )
Copyright © 1968 The American College of Chest Physicians Terms and Conditions

7. FIGURE 2B (right)
Case 2, August 20, Bulla in left upper lobe partly filled with fluid.
Diseases of the Chest  , DOI: ( /chest )
Copyright © 1968 The American College of Chest Physicians Terms and Conditions

8. FIGURE 2C (left)
Case 2, November 3, Bulla with fluid in left upper lobe no longer visible leaving thickened pleura; scattered areas of fibrosis and hyperillumination of remainder of both lungs.
Diseases of the Chest  , DOI: ( /chest )
Copyright © 1968 The American College of Chest Physicians Terms and Conditions

9. FIGURE 2D (right)
Case 2, December 8, Reappearance of antrum and fluid in left upper lobe.
Diseases of the Chest  , DOI: ( /chest )
Copyright © 1968 The American College of Chest Physicians Terms and Conditions