Table 1.
Patient and tumor characteristics n (%)
| Patients (n = 41) | |
| Age (yr) | |
| mean ± SD | 47 ± 14 |
| Range | 20-77 |
| Sex | |
| Male | 17 (41.5) |
| Female | 24 (58.5) |
| Tumor type | |
| Carcinoid | 12 (29.3) |
| Functional PNET | 19 (46.3) |
| Non-functional PNET | 10 (24.4) |
| Tumor grade | |
| Well-differentiated NET | 13 (31.7) |
| Well-differentiated NEC | 26 (63.4) |
| Poorly differentiated NEC | 1 (2.4) |
| Unknown | 1 (2.4) |
| Metastases | |
| Present | 26 (63.4) |
| Lymph node only | 9 (34.6) |
| Liver only | 7 (26.9) |
| Both | 10 (38.5) |
| Absent | 15 (36.6) |
| Tumors (n = 60) | |
| Primary or metastatic tissues | |
| Primary | 45 (75.0) |
| Metastasis | 15 (25.0) |
| Angio-invasion | |
| Present | 11 (18.3) |
| Absent | 49 (81.7) |
| Tumor size (mean ± SD, cm) | |
| Carcinoids | 3.4 ± 2.7 |
| Functional PNETs | 1.9 ± 1.7 |
| Non-functional PNETs | 3.6 ± 2.4 |
PNETs: Pancreatic neuroendocrine tumors; NET: Neuroendocrine tumor; NEC: Neuroendocrine carcinoma.