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. 2026 Jul 13;16:1848147. doi: 10.3389/fonc.2026.1848147

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Copyright © 2026 Zhu, Shi, Su, Zhang, Zhang, Lu, Luowu, Sun, Qu and Zhang.

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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Panel A shows a histology section with dense lymphocytic infiltration and disrupted glandular architecture. Panel B displays thyroid follicles with intervening lymphoid cells. Panel C presents extensive lymphocyte aggregates forming lymphoid follicles. Panel D exhibits high magnification of a crowded lymphoid cell population with some larger cells scattered throughout. — Histopathological findings of Hashimoto thyroiditis, papillary thyroid microcarcinoma, and primary thyroid lymphoma. (A) Hematoxylin-eosin staining showing Hashimoto thyroiditis (original magnification×20). (B) Hematoxylin-eosin staining showing papillary thyroid microcarcinoma (original magnification ×20). (C) Hematoxylin-eosin staining showing primary thyroid lymphoma (PTL)(original magnification ×20). (D) Hematoxylin-eosin staining showing PTL (original magnification×40).