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Stomach - Gastric adenocarcinoma with strong Cytokeratin 20 positivity of all tumor cells. |
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Prostate - Moderate to strong Cytokeratin 20 immunostaining of few tumor cells in an adenocarcinoma (Gleason 5+5). |
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Ovary - Mucinous carcinoma with strong Cytokeratin 20 immunostaining in all cells. |
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Ovary - Strong Cytokeratin 20 positivity in a mucinous carcinoma. |
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