Table 1. Clinical characteristics of 83 patients with benign lesions.
| Characteristic | n | % |
|---|---|---|
| Sex | ||
| Male | 46 | 55.42 |
| Female | 37 | 44.58 |
| Age, years | ||
| Median | 60 | |
| Range | 35–78 | |
| BIL | ||
| TBIL (>23 µmol/L) | 54/78 | 69.23 |
| DBIL (>4 µmol/L) | 69/78 | 88.46 |
| Tumor markers | ||
| CA19-9 (>37 U/mL) | 37/82 | 45.12 |
| CA125 (>35 U/mL) | 4/39 | 10.26 |
| CEA (>5 ng/mL) | 5 | 6.02 |
| Times of preoperative biopsies | ||
| 1 | 76 | 91.57 |
| 2 | 7 | 8.43 |
| Preoperative pathological biopsy | ||
| Dysplasia | 76 | 91.57 |
| Inflammation | 7 | 8.43 |
| Postoperative pathological biopsy | ||
| Cancer | 81 | 97.59 |
| Dysplasia | 2 | 2.41 |
| Lymph node status | ||
| Positive | 16/81 | 19.75 |
| Negative | 65/81 | 80.25 |
| Pathologic stage (AJCC 8) | ||
| I | 38/79 | 48.10 |
| II | 25/79 | 31.65 |
| III | 16/79 | 20.25 |
BIL, bilirubin; TBIL, total bilirubin; DBIL, direct bilirubin; AJCC, American Joint Committee on Cancer.