Imaging findings
Of 78 patients who underwent chest computed tomography on admission, 71.8% (56/78) had CT evidence of pneumonia. 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. No centrilobular nodules or lymphadenopathy was found.
Pneumonias were in both lower lobes in 48 (85.7%) cases, in the left upper lobe in 42 (75.0%), right upper lobe in 32 (57.1%), and right middle lobe in 30 (53.6%). Eight cases involved a single lung lobe, accounting for 10.3% of all cases and for 14.8% of CT positive cases; 40 cases involved more than two lung lobes, accounting for 51.3% of all cases and for 74% of CT positive cases; 45 cases involved both lungs, accounting for 57.7% of all cases and for 83.3% of CT positive cases.