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. 2013 Oct 4;6(6):1779–1783. doi: 10.3892/ol.2013.1603

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Copyright © 2013, Spandidos Publications

This is an open-access article licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License. The article may be redistributed, reproduced, and reused for non-commercial purposes, provided the original source is properly cited.

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Bright field pathology images. (A) Primary lung tumor (HE staining; magnification, ×100). Tumor solid growth with evident differentiation. (B) Metastasis (IHC staining with TTF1-antibody showing positive tumor with high magnification (x400). The tumor demonstrated an increased size with evident differentiation. Mitosis was observed. (C) Metastasis (HE staining; magnification, ×100). Invasive growth of tumor cells in fibrous tissue. (D) Metastasis (HE staining; magnification, ×400). Tumor cells with an abundance of cytoplasm. Mitosis were observed. HE, hematoxylin and eosin; IHC, immunohistochemistry.