Table 1.
Characteristics of the patients and histopathological features of the neoplasms.
| Patients | 77 |
| Gender (M/F) | 45/32 |
| Mean age (yrs) | 56.8 ± 15 |
| BMI | 25.2 ± 3 |
| ASA score | |
| 1-2 | 66 (85.7%) |
| 3-4 | 9 (14.3%) |
| Type of surgery | |
| PD | 22 (28.6%) |
| DP | 50 (64.9%) |
| TP | 5 (6.5%) |
| Tumor | |
| T1–T2 | 46 (59.7%) |
| T3–T4 | 31 (40.3%) |
| Resection margin | |
| R0 | 72 (93.5%) |
| R1 | 5 (6.5%) |
| Grading | |
| NET G1 | 36 (46.8%) |
| NET G2 | 37 (48.1%) |
| NET G3 | 3 (3.9%) |
| NEC G3 | 1 (1.2%) |
| Mitotic count | |
| <2 | 54 (70.1%) |
| 2-20 | 21 (27.3%) |
| >20 | 2 (2.6%) |
| Ki67 | |
| <3% | 36 (46.8%) |
| 3-20% | 37 (48.1%) |
| >20% | 4 (5.1%) |
| Number of harvested lymph nodes (mean ± SD) | 12.6 ± 10 |
| Nodal involvement | |
| N0 | 52 (67.5%) |
| N1 | 16 (20.8%) |
| N2 | 9 (11.7%) |
| LNR (mean ± SD) | 0.09 ± 0.2 |
PD: pancreaticoduodenectomy; DP: distal pancreatectomy; TP: total pancreatectomy. Continuous data are expressed as mean ± standard deviation; nodal invasion is reported as proposed in the methods section. pNENs: pancreatic neuroendocrine neoplasms; pNECs: pancreatic neuroendocrine carcinomas.