Fig. 4. A 50-year-old woman with coronavirus disease 2019 pneumonia in the severe group.

She had a fever, cough, and sputum 10 days before CT. Her premorbid condition was hypertension. Axial (A) and coronal (B) non-contrast chest CT scans show extensive involvement of mixed ground glass opacification and consolidation (white arrows). Multifocal interlobular septal thickening (arrowheads) and air bronchogram (black arrows) are also observed. The total lung severity score was 16.