1. Cobblestone Airways Mayo Clinic Proceedings
Timothy J. Barreiro, DO, MPH 
Mayo Clinic Proceedings 
Volume 91, Issue 12, (December 2016)
DOI: /j.mayocp
Copyright © 2016 Mayo Foundation for Medical Education and Research Terms and Conditions

2. Figure 1
Photomicrograph from a bronchoscopy featuring endobronchial mucosal nodules, each measuring 3 to 4 mm in diameter, the abnormalities seen in sarcoidosis. Image of the lower subsegmental bronchi. RLL = right lower lobe; RML = right middle lobe.
Mayo Clinic Proceedings  , DOI: ( /j.mayocp )
Copyright © 2016 Mayo Foundation for Medical Education and Research Terms and Conditions

3. Figure 2
Histology of bronchial mucosal nodule. Panels (10×) show columnar epithelium with a large noncaseating granuloma. Stating was negative for fungal or infection etiologies.
Mayo Clinic Proceedings  , DOI: ( /j.mayocp )
Copyright © 2016 Mayo Foundation for Medical Education and Research Terms and Conditions

4. Supplemental Figure 1
Mayo Clinic Proceedings  , DOI: ( /j.mayocp )
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5. Supplemental Figure 2
Mayo Clinic Proceedings  , DOI: ( /j.mayocp )
Copyright © 2016 Mayo Foundation for Medical Education and Research Terms and Conditions