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. 2020 Oct 24;11(10):761–808. doi: 10.5306/wjco.v11.i10.761

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©The Author(s) 2020. Published by Baishideng Publishing Group Inc. All rights reserved.

This article is an open-access article that was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution NonCommercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial.

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Extensive confluent tumour necrosis with fibrosis in keeping with a partial response to neoadjuvant therapy (Hematoxylin-eosin staining, × 4 magnification).