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. 2026 Jul 13;16:1859707. doi: 10.3389/fonc.2026.1859707

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Copyright © 2026 Qi, Li, Luo, Huang, Shi and Xiao.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Microscopic histology image of tissue stained with hematoxylin and eosin shows densely packed, irregularly shaped cells with dark purple nuclei and scattered light pink extracellular matrix, with a 100 micrometer scale bar in the lower left corner. — Histopathological examination result revealing poorly differentiated adenocarcinoma and signet ring cells (hematoxylin and eosin staining).