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. 2020 Jul 10;99(28):e21240. doi: 10.1097/MD.0000000000021240

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Copyright © 2020 the Author(s). Published by Wolters Kluwer Health, Inc.

This is an open access article distributed under the Creative Commons Attribution License 4.0 (CCBY), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. http://creativecommons.org/licenses/by/4.0

This article is made available via the PMC Open Access Subset for unrestricted re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for the duration of the COVID-19 pandemic or until permissions are revoked in writing. Upon expiration of these permissions, PMC is granted a perpetual license to make this article available via PMC and Europe PMC, consistent with existing copyright protections.

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Computed tomography (CT) images showing the changes of the cavity in the anterior segment of the left upper lobe. (A) A CT image obtained on February 6, 2020 showing the ground glass opacities and linear opacities in the lungs predominantly distributed in the peripheral third of the lungs. (B) A CT image obtained on February 20, 2020 showing the reduced ground glass opacities area. A small cavity was found in the anterior segment of the left upper lobe with a size of 9.3 × 6.7 mm. (C) A CT image obtained on February 23, 2020 showing consolidation of the small cavity in the anterior segment of the left lobe with a size of 7.8 × 6.3 mm (arrow); (D) A CT image obtained on February 27 showing consolidation of the cavity in the upper segment of the left upper lobe with the size slightly reduced to 6.5 × 5.5 mm (arrow); (E) A CT image obtained on March 1, 2020 showing the reduced cavity in the anterior segment of the left upper lobe, with a size of 5.0 × 4.5 mm (arrow). (F) A CT image obtained on March 17, 2020 showing that the ground glass opacities in the lungs were almost completely absorbed. The solid nodule in the anterior segment of the left upper lobe had significantly reduced in size, with a size of 2.5 × 1.5 mm (arrow).