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. 2020 Jul 1;12(1):e2020035. doi: 10.4084/MJHID.2020.035

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

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Pathological findings of the inguinal lymph node biopsy. (a) Ziehl-Neelsen staining of the right inguinal lymph node biopsy specimen shows acid-fast bacilli in granuloma (dashed-line circle). (b) HE staining shows atypical large lymphoma cells with T cells in the background. (c) In-situ hybridization for Epstein-Barr virus-encoded small RNA (EBER-ISH) is positive. Immunohistochemical staining shows (d) EBNA-2 partially positive, and (e) PD-L1 positive (x400 (b, e), x200 (c, d) at original magnification).