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. 2021 Nov 5;100(44):e27435. doi: 10.1097/MD.0000000000027435

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Copyright © 2021 the Author(s). Published by Wolters Kluwer Health, Inc.

This is an open access article distributed under the terms of the Creative Commons Attribution-Non Commercial License 4.0 (CCBY-NC), where it is permissible to download, share, remix, transform, and buildup the work provided it is properly cited. The work cannot be used commercially without permission from the journal. http://creativecommons.org/licenses/by-nc/4.0

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Paralleled long diameters in GGO and pleurae. A: bilateral pulmonary multiple GGO: subpleural GGO with clear margin and even density in the lateral segment of the middle lobe of right lung (white arrow); B: subpleural GGO with ambiguous margin and even density in the anterior basal segment of the lower lobes of right lung (white arrow); C: bilateral pulmonary multiple GGO with ambiguous margin and uneven density (white arrow); D: multiple GGO with clear margin and uneven density in the external segment of the lower lobes of right lung (white arrow). GGO = ground-glass opacification.