Small interstitial nodules

1. Full Professor Emeritus. Fluminense Federal University, Niterói; and Associate Professor of Radiology, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil. 2. Professor. Graduate Program in Radiology, Federal University of Rio de Janeiro, Rio de Janeiro; and Professor of Clinical Medicine, Petrópolis School of Medicine, Petrópolis, Brazil. 3. Radiologist. Santa Casa Hospital Complex in Porto Alegre; and Professor of Radiology, Federal University of Health Sciences of Porto Alegre, Porto Alegre, Brazil. Figure 1 Small nodules evenly distributed throughout the lungs, no particular lung compartment being predominantly affected. Note that some of the nodules touch the pleural surface, whereas others are in contact with the fissures.