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Logo of bmccancBioMed Centralsearchsubmit a manuscriptregisterthis articleBMC Cancer
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Published online Feb 2, 2006. doi:  10.1186/1471-2407-6-31

Figure 1

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Immunohistochemical analysis of β-catenin, cytokeratin 7, and cytokeratin 20. (A) Positive nuclear staining of β-catenin in primary colorectal cancer. (B) Positive nuclear and cytoplasmic staining of β-catenin in lung metastasis of colorectal cancer. (C) Negative nuclear and cytoplasmic staining of β-catenin and positive membranous staining of β-catenin in primary lung acinar adenocarcinoma. (D and E) Negative staining of cytokeratin 7 in primary colorectal cancer and in lung metastasis of colorectal cancer. (F) Positive cytoplasmic staining of cytokeratin 7 in primary lung acinar adenocarcinoma. (G and H) Positive cytoplasmic staining of cytokeratin 20 in primary colorectal cancer and in lung metastasis of colorectal cancer. (I) Negative staining of cytokeratin 7 in primary lung acinar adenocarcinoma. Bar 50 μm