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A representative PDAC with CEACAM 1/5 staining that is strong and diffuse in the tumor epithelial cells (A), whereas tenascin C staining that is strong and diffuse in the stroma (B). A representative IPMN with CEACAM 1/5 staining that is strong and diffuse in the tumor epithelial cells (C), whereas tenascin C staining that is moderate and focal in the stroma (D).
