Table 1 Distribution of CK7, CK20 and CDX2 staining with percentages of positive cells in primary colorectal, gastric and pancreatic adenocarcinomas
| Â | Â | Negative | Positive | Total | |||
|---|---|---|---|---|---|---|---|
| Â | Â | 0 | 1+ | 2+ | 3+ | 4+ | Â |
Colorectal adenocarcinoma | CK7 | 92 (78%) | 8 (7%) | 6 (5%) | 5 (4%) | 7 (6%) | 118 |
| Â | CK20 | 19 (16%) | 20 (17%) | 16 (13%) | 22 (19%) | 41 (35%) | 118 |
| Â | CDX2 | 4 (3%) | 7 (6%) | 15 (13%) | 21 (18%) | 71 (60%) | 118 |
Gastric adenocarcinoma | CK7 | 12 (20%) | 5 (9%) | 7 (12%) | 6 (10%) | 29 (49%) | 59 |
| Â | CK20 | 28 (47%) | 16 (27%) | 6 (10%) | 8 (14%) | 1 (2%) | 59 |
| Â | CDX2 | 23 (39%) | 13 (22%) | 9 (15%) | 10 (17%) | 4 (7%) | 59 |
Pancreatic adenocarcinoma | CK7 | 1 (3%) | 1 (3%) | 1 (3%) | 9 (28%) | 20 (63%) | 32 |
| Â | CK20 | 25 (78%) | 6 (20%) | 1 (3%) | 0 (0%) | 0 (0%) | 32 |
| Â | CDX2 | 27 (85%) | 3 (9%) | 2 (6%) | 0 (0%) | 0 (0%) | 32 |