1. Volume 136, Issue 2, Pages 622-627 (August 2009)
A 40-Year-Old Woman With an Asymptomatic Cystic Lesion in Her Right Lung 
Peggy S. Lai, MD, David W. Cohen, MD, Malcolm M. DeCamp, MD, FCCP, Sara Fazio, MD, David H. Roberts, MD, FCCP 
CHEST 
Volume 136, Issue 2, Pages (August 2009)
DOI: /chest
Copyright © 2009 The American College of Chest Physicians Terms and Conditions

2. Figure 1
Posteroanterior chest radiograph showing multiple, thin-walled cystic structures in the right upper lung zone.
CHEST  , DOI: ( /chest )
Copyright © 2009 The American College of Chest Physicians Terms and Conditions

3. Figure 2
High resolution CT scan of the chest with contrast. Left: axial image showing both fluid-filled and air-filled cystic structures in the right upper lobe. Right: coronal reformation with view through central airways showing incomplete major fissure and no clear connection between cystic lesions and tracheobronchial tree.
CHEST  , DOI: ( /chest )
Copyright © 2009 The American College of Chest Physicians Terms and Conditions

4. Figure 3
Gross image of a bisegmentectomy specimen that has been bisected, demonstrating multiple cysts with intervening pulmonary parenchyma. Although most of the cyst linings are thin and delicate, occasional cysts had fibrotic walls.
CHEST  , DOI: ( /chest )
Copyright © 2009 The American College of Chest Physicians Terms and Conditions

5. Figure 4
Top left: cyst wall composed of delicate fibromuscular tissue and lined with ciliated respiratory epithelium. The cysts abut unremarkable alveolar tissue (hematoxylin-eosin, original ×4). Top right: higher magnification demonstrates pseudostratified ciliated columnar epithelium lining the cyst wall (hematoxylin-eosin, original ×40). Bottom left: the largest cyst has a thick fibrous wall without an apparent epithelial lining, with transition to a thin delicate cyst lining with pseudostratified columnar epithelium (hematoxylin-eosin, original ×10). Bottom right: thickened fibrotic cyst wall with dystrophic calcification (hematoxylin-eosin, original ×4).
CHEST  , DOI: ( /chest )
Copyright © 2009 The American College of Chest Physicians Terms and Conditions