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Acinar cell carcinoma of the pancreas exhibiting a moderate focal CPA1 positivity. (CPA1 immunohistochemistry) |
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Acinar cell carcinoma of the pancreas showing strong CPA1 immunostaining in all tumor cells. (CPA1 immunohistochemistry) |
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Complete absence of CPA1 immunostaining in a ductal adenocarcinoma of the pancreas. (CPA1 immunohistochemistry) |
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Complete absence of CPA1 immunostaining in a neuroendocrine carcinoma of the pancreas. (CPA1 immunohistochemistry) |
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