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Immunohistochemical Expression by Histological Classification
| Positive cases (%) | ||||
|---|---|---|---|---|
| Intestinal type | Pancreatobiliary type | Unusual type | P* | |
| (N = 16) | (N = 18) | (N = 9) | ||
| CK7 | 13 (81) | 17 (94) | 9 (100) | (p = 0.178) |
| CK20 | 16 (100) | 4 (22) | 6 (67) | (p < 0.001) |
| MUC1 | 6 (38) | 17 (94) | 7 (78) | (p < 0.001) |
| MUC2 | 4 (25) | 2 (11) | 2 (22) | (p = 0.540) |
| MUC5AC | 6 (38) | 8 (44) | 5 (56) | (p = 0.683) |
| MUC6 | 7 (44) | 5 (28) | 5 (56) | (p = 0.341) |
* χ2 test. The percentage represents sensitivity
