PMC9377815_01
Intestinal pattern neoplastic component (upper) and pseudo-acinar pattern component (lower) separated by vascularised connective tissue.
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figure1
Microscopic examination (H&E stain). Extensive malignant neoplastic proliferation in the intestinal pattern component. The columnar epithelial lineage stands out, as well as the areas of coagulative necrosis.
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figure2
Heterotopic pancreas adjacent to gastric wall infiltrated by acinar cell carcinoma.
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figure3
H&E stain (left) and Cytokeratin-20 (right).
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figure4
Plasma membrane antigen. This marker is generally distributed in many epithelial neoplasms. It shows positivity in the intestinal pattern component and is negative in the acinar component.
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figure5