Review
Copyright ©2014 Baishideng Publishing Group Inc.
World J Radiol. Oct 28, 2014; 6(10): 779-793
Published online Oct 28, 2014. doi: 10.4329/wjr.v6.i10.779
Figure 21
Figure 21 Pneumonia on a background of pulmonary emphysema in a man in his 70s (causative pathogen unknown). Thin-section computed tomography shows patchy consolidations with small air-containing spaces consistent with preexistent low attenuation areas in the left lower lobe.