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. 2019 Jul 27;10(9):1841–1845. doi: 10.1111/1759-7714.13156

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© 2019 The Authors. Thoracic Cancer published by China Lung Oncology Group and John Wiley & Sons Australia, Ltd

This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Malignant glandular component made up of dysplastic cells arranged in distinct confluent glandular‐cribriform clusters (a). These neoplastic glandular elements are positive for Napsin A (b) and negative for p63. Malignant squamous component made up of polygonal tumor cells arranged in solid infiltrative clusters (c). Individual cell keratinization and intercellular bridges are clearly evident. These neoplastic squamoid elements are positive for p63 (d) and negative for Napsin A. (x100).