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Larynx - Squamous cell carcinoma with intense Cytokeratin 13 positivity of suprabasal cells. |
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Lung - Cytokeratin 13 negative adenocarcinoma. |
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Lung - Squamous cell carcinoma with intense Cytokeratin 13 positivity of all cells. Cytokeratin 13 staining intensity increases from the basal cell layers to the center of invasive tumor cell nests. |
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Ovary - Brenner tumor with strong Cytokeratin 13 positivity of urothelial cells. |
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