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. 2020 Aug 24;48(8):0300060520947918. doi: 10.1177/0300060520947918

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© The Author(s) 2020

Creative Commons Non Commercial CC BY-NC: This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License (https://creativecommons.org/licenses/by-nc/4.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).

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Figure 3. — Haematoxylin and eosin staining showed coexistent metastatic adenocarcinoma and neuroendocrine carcinoma; original magnification, × 100. (a) High magnification of the neuroendocrine component; original magnification, × 400. (b) The mitotic rate of the small cell neuroendocrine component was 20 cells per 10 high power fields. (c) Immunohistochemically, the neuroendocrine carcinoma cells were positive for synaptophysin; original magnification, ×200 and (d) CD 56; original magnification, ×200. (e) Immunohistochemical assay for Ki67 showing high proliferating index; original magnification, ×200.