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. 2020 Nov;9(11):7359–7365. doi: 10.21037/tcr-20-2151

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2020 Translational Cancer Research. All rights reserved.

Open Access Statement: This is an Open Access article distributed in accordance with the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International License (CC BY-NC-ND 4.0), which permits the non-commercial replication and distribution of the article with the strict proviso that no changes or edits are made and the original work is properly cited (including links to both the formal publication through the relevant DOI and the license). See: https://creativecommons.org/licenses/by-nc-nd/4.0/.

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Pathologic findings of Axillary mass and CT-guided transthoracic needle biopsy. (A) Tissue showed Malignant tumor with necrosis, tumor invasion of blood vessel wall and skin accessories, nerve involvement. (B) Percutaneous transthoracic needle biopsy specimen showed chronic inflammation, diffuse alveolar cavity visible large degenerative necrotic exudates and alveolar-epithelial atypical hyperplasia. (C) By immunohistochemistry, cells were positive for CD3. (D) Immunohistochemical staining was negative for CD20. (E) Immunohistochemical staining was positive for CD56. (F-G) Immunohistochemical staining was positive for granzyme B and TIA. (H) cells were positive for Ki-67. (I) In situ hybridization for Epstein-Barr virus-encoded RNA (EBER) showed positive reaction in tumor cells (magnification, ×100).