Among 56 pneumonia patients, 45 cases (80.4%) had ground-glass opacities, 43 (76.8%) had mixed ground-glass opacities, 12 (21.4%) had consolidation, 49 (87.5%) had peripheral distribution, 18 (32.1%) had peribronchovascular distribution, 25 (44.6%) had interlobular septal thickening within the lesions, 41 (73.2%) had air bronchograms, 30 (53.6%) had fibrotic lesions, no cavitation was seen, and 5 (8.9%) had pleural effusion.