1. Volume 148, Issue 3, Pages e80-e85 (September 2015)
A 29-Year-Old Man With Nonproductive Cough, Exertional Dyspnea, and Chest Discomfort 
Darragh Halpenny, MD, James Suh, MD, Suzette Garofano, MD, Jeffrey Alpert, MD 
CHEST 
Volume 148, Issue 3, Pages e80-e85 (September 2015)
DOI: /chest
Copyright © 2015 The American College of Chest Physicians Terms and Conditions

2. Figure 1
Posteroanterior chest radiograph demonstrating faint linear opacities in both lower zones.
CHEST  , e80-e85DOI: ( /chest )
Copyright © 2015 The American College of Chest Physicians Terms and Conditions

3. Figure 2
A-D, High-resolution CT scan images of the chest obtained at varying levels at the time of presentation, demonstrating basally predominant areas of predominantly subpleural ground-glass attenuation with mild subpleural reticulation.
CHEST  , e80-e85DOI: ( /chest )
Copyright © 2015 The American College of Chest Physicians Terms and Conditions

4. Figure 3
A, High-power image shows macrophages with fine cytoplasmic pigment within alveoli and focal mild interstitial chronic inflammation consisting of lymphocytes and a few eosinophils (hematoxylin and eosin [H&E], original magnification X 400). B, Low-power image shows diffusely abnormal lung parenchyma with abundant macrophages filling distal airways and alveolar spaces as well as scattered lymphoid aggregates (H&E, original magnification X 20).
CHEST  , e80-e85DOI: ( /chest )
Copyright © 2015 The American College of Chest Physicians Terms and Conditions

5. Figure 4
A-D, High-resolution CT scan images of the chest obtained at varying levels following 2 mo of steroid therapy, demonstrating considerable improvement in the previously identified areas of subpleural ground-glass attenuation.
CHEST  , e80-e85DOI: ( /chest )
Copyright © 2015 The American College of Chest Physicians Terms and Conditions