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Patterns of immunolabeling in IPMNs, IOPNs and ITPNs
| Tumor type | MUC1 | MUC2 | MUC5AC | MUC6 | CDX2 |
|---|---|---|---|---|---|
| Gastric-foveolar IPMN | − | − | + | ± | − |
| Intestinal IPMN | − | + | + | ± | + |
| Pancreatobiliary IPMN | + | − | + | + | − |
| IOPN | + | * | * | + | − |
| ITPN | + | − | − | + | − |
Restricted to goblet cells. IOPN, intraductal oncocytic papillary neoplasm; IPMN, intraductal papillary mucinous neoplasm; ITPN, intraductal tubulopapillary neoplasm
