Table 2.
Mucin Expression Profiles in Various Intraductal Papillary Mucinous Neoplasms Histotypes
| TYPE | Main involvement |
MUC1 | MUC2 | MUC5AC | Type of invasive carcinoma (%) |
|---|---|---|---|---|---|
| Intestinal IPMN | MD | − | + | + | Colloid (30–50) |
| Pancreatobiliary IPMN | MD | + | − | + | Tubular (>50) |
| Gastric IPMN | BD | − | − | + | Tubular (10–30) |
| Oncocytic IPMN | MD | +/− | − | + | Oncocytic (NA) |
| ITPN | MD | + | − | − | Tubular (NA) |
IPMN, intraductal papillary mucinous neoplasm; ITPN, intraductal tubulopapillary neoplasm; MD, main duct; BD, branch duct; NA, not available.