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. 2020 Sep 29;7(12):1868–1878. doi: 10.1093/nsr/nwaa247

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© The Author(s) 2020. Published by Oxford University Press on behalf of China Science Publishing & Media Ltd.

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

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Figure 4. — Changes in hilar lymph nodes of COVID-19 patients. (A and B) H&E staining showing the subcapsular sinus expansion in the hilar lymph nodes from COVID-19 autopsy cases (A, Case 9) relative to the control hilar lymph nodes dissected from lung carcinoma patients (B). (C and D) IHC staining showing the increased CD68-positive macrophages in the subcapsular sinus of hilar lymph nodes from COVID-19 autopsy cases (C, Case 9) relative to those in the control hilar lymph nodes (D). (E and F) IHC staining showing the CD3-positive T lymphocytes in the hilar lymph node cortex from COVID-19 autopsy cases (E, Case 9) relative to those in the control hilar lymph node cortex (F). (G and H) IHC staining showing the CD20-positive B lymphocytes in the hilar lymph node cortex from COVID-19 autopsy cases (G, Case 9) and those in the control hilar lymph node cortex (H). Scale bar = 100 μm.