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. 2021 Sep 6;9(25):7330–7339. doi: 10.12998/wjcc.v9.i25.7330

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©The Author(s) 2021. Published by Baishideng Publishing Group Inc. All rights reserved.

This article is an open-access article that was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution NonCommercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/Licenses/by-nc/4.0/

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Chest computed tomography, bronchoscopy image and pathology image of a patient. A: Chest computed tomography of a patient with tracheobronchial tuberculosis showing no obvious abnormalities; B: Bronchoscopy image showing white caseous necrotic tissue on tracheal wall; C: Bronchoscopy image showing granulomatous proliferation on the wall of lower right trachea; D: Necrotic granulomatosis was detected on the pathology image, accompanied with positive acid fast-staining and detection of mycobacterium tuberculosis complex, × 1000 magnification.