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IPMN : Immunohisto-chemistry

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Immunohistochemistry: Most intraductal papillary mucinous neoplasms (IPMNs) of pancreas strongly express ductal markers such as CK7, CK19, CA19-9, and CEA.

Gastric-type IPMNs are positive for MUC5 and MUC6.

Intestinal-type IPMNs are positive for MUC2, MUC5, CK20, and CDX2, while negative for MUC-1.

Pancreatobiliary IPMN are positive for MUC1, MUC5, and MUC6, while negative for MUC2 and CDX-2.

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