Thoracic imaging in COVID–19

The typical chest radiographic and computed tomographic (CT) findings of COVID-19 include bilateral, multifocal parenchymal opacities (ground-glass opacities with or without consolidation, and crazy paving). In most cases, the opacities are predominantly in the peripheral and lower lung zones, and several have rounded morphology. However, these imaging findings are not pathognomonic for COVID-19 pneumonia and can be seen in the setting of other viral and bacterial infection as well as noninfectious causes such as drug toxicity and connective tissue disease. Most radiology professional organizations and societies recommend against performing routine screening CT to diagnose or exclude COVID-19.