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Pancreas- Ductal adenocarcinoma showing diffuse strong HLA-DRa positivity of tumor cells, tumor associated inflammatory cells and capillaries. |
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Pancreas- HLA-DR negative adenocarcinoma of the ampulla Vaterii showing HLA-DRa positivity of tumor associated capillaries and inflammatory cells. |
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Pancreas- HLA-DR negative ductal adenocarcinoma showing strong HLA-DRa positivity of tumor associated inflammatory cells. |
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Pancreas- HLA-DR negative neuroendocrine tumor showing HLA-DRa immunostaining of capillaries and inflammatory cells. |
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