PMC7577872_01
Chest CT axial (a, b) and coronal (c) images demonstrating diffuse bilateral ground-glass opacities with lobular spared areas (mosaic attenuation pattern), ill-defined centrilobular ground-glass nodules in the upper lobes and mild interlobula.
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Chest CT displayed diffuse bilateral ground-glass opacities with lobular spared areas (mosaic attenuation pattern), ill-defined centrilobular ground-glass nodules and mild interlobular thickening, however without the characteristic distribution of COVID-19 (Fig. 1 ).