Table I.
Characteristics of distal cholangiocarcinoma cases (n = 147 patients)
| Factor | Characteristics | No. (%) |
|---|---|---|
| Sex | Male | 90 (61.2) |
| Female | 57 (38.8) | |
| Differentiation | Well | 5 (3.4) |
| Moderately | 99 (67.3) | |
| Poorly | 43 (29.3) | |
| Histologic type | Adenocarcinoma | 143 (97.3) |
| Papillary carcinoma | 3 (2.0) | |
| Adenosquamous | 1 (0.7) | |
| T classification | T1 | 11 (7.5) |
| T2 | 6 (4.1) | |
| T3 | 73 (49.7) | |
| T4 | 57 (38.8) | |
| Nodal metastasis | Absent | 54 (36.7) |
| Present | 93 (63.3) | |
| Resection margin | Absent | 133 (90.5) |
| Present | 14 (9.5) | |
| Perineural invasion | Absent | 49 (33.3) |
| Present | 98 (66.7) | |
| Vascular invasion | Absent | 109 (74.1) |
| Present | 38 (25.9) | |
| Pancreas invasion | Absent | 19 (12.9) |
| Present | 128 (87.1) | |
| Duodenal invasion | Absent | 90 (61.2) |
| Present | 57 (38.8) | |
| Depth of invasion | <5 mm | 14 (9.5) |
| 5–12 mm | 75 (51.0) | |
| >12 mm | 58 (39.5) |