Table 4.
Extent of the remaining epithelium and diagnostic results of the bile duct margin
| Extent of the remaining epithelium | Negative (%) | Borderline (%) | Positive (%) | Total (%) | |
| FSD | |||||
| E1 (0%-24%) | 22 (66.6) | 9 (27.3) | 2 (6.1) | 33 (100) | |
| E2 (25%-49%) | 8 (38.1) | 11 (52.4) | 2 (9.5) | 21 (100) | |
| E3 (50%-100%) | 14 (30.4) | 21 (45.7) | 11 (23.9) | 46 (100) | |
| PSD | |||||
| E1 (0%-24%) | 22 (68.7) | 7 (21.9) | 3 (9.4) | 32 (100) | |
| E2 (25%-49%) | 9 (42.9) | 9 (42.9) | 3 (14.3) | 21 (100) | |
| E3 (50%-100%) | 28 (59.6) | 11 (23.4) | 8 (17.0) | 47 (100) |
FSD: Frozen section diagnosis; PSD: Permanent section diagnosis.