Table 1 Patients’ characteristics
Characteristic | Number of patients (%) | |
|---|---|---|
Age (years) | Median: 68 (range, 51–80) | |
Sex | Male | 56 (60.2) |
Female | 37 (39.8) | |
Location | Perihilar bile duct | 25 (26.9) |
Distal bile duct | 52 (55.9) | |
Ampulla of Vater | 16 (17.2) | |
Tumor satellites | Present | 2 (2.2) |
Absent | 91 (97.8) | |
Pathologic T stage | T1–2 | 55 (59.1) |
T3–4 | 38 (40.9) | |
No. of LN dissection | ≤8 | 50 (53.8) |
> 8 | 43 (46.2) | |
Pathologic N stage | N0 | 63 (67.7) |
N+ | 30 (32.3) | |
Histology | Adenocarcinoma | 91 (97.8) |
Others | 2 (2.2) | |
Histologic differentiation | WD-MD | 74 (79.6) |
PD | 19 (20.4) | |
Lymphovascular invasion | Yes | 32 (34.4) |
No | 61 (65.6) | |
Perineural invasion | Yes | 46 (49.5) |
No | 47 (50.5) | |
Resection margin status | R0 | 59 (63.4) |
Close RM-R1 | 34 (36.6) | |
Adjuvant chemotherapy | Fluoropyrimidine based | 8 (8.6) |
Gemcitabine based | 9 (9.7) | |
No | 76 (81.7) |