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. 2023 Apr 20;25(6):241. doi: 10.3892/ol.2023.13827

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Copyright: © Liu et al.

This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.

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Figure 3. — Histological analyses of small bowel tumors after resection (January 2021). (A) The tumor cells are polygonal, with a cytoplasm, eosinophilic, nuclear polygonal and without any obvious adenoid structure (hematoxylin and eosin staining; magnification, ×100; scale bar, 200 µm). (B) Tumor cells had positive staining for CK7 (IHC staining; magnification, ×200, scale bar, 100 µm). (C) Tumor cells exhibited positive staining for thyroid transcription factor-1 (IHC staining; magnification, ×200; scale bar, 100 µm). (D) Tumor cells had negative staining for CK20 (IHC staining; magnification, ×200; scale bar, 100 µm). (E) The tumor cells had a Ki-67 labeling index of 60% (IHC staining; scale bar, 400 µm). CK, cytokeratin; IHC, immunohistochemical.