CT Scans of Airways (IMAGE) NIH/National Heart, Lung and Blood Institute Caption These CT scans of airways (red) and lungs (black) show the spectrum of dysanapsis, with smaller airways in proportion to lung size (left) compared with normal size airways (middle), and larger than normal airways (right). Credit VIDA Apollo Software, courtesy of Eric A. Hoffman, PhD, Radiology, University of Iowa Carver College of Medicine Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.