Table 1 Clinicopathologic characteristics of 1183 patients with gastroenteropancreatic neuroendocrine neoplasms (GEP-NENs)
Variable | No. of cases (%) |
|---|---|
Gender | |
Female | 468 (39.6) |
Male | 715 (60.4) |
Age (years) | |
≤50 | 564 (47.7) |
>50 | 619 (52.3) |
Tumor functionality | |
Nonfunctional | 979 (82.8) |
Functional | 204 (17.2) |
Tumor location | |
Stomach | 245 (20.7) |
Pancreas | 332 (28.1) |
Small intestine | 85 (7.2) |
Appendix | 40 (3.4) |
Colon | 39 (3.3) |
Rectum | 442 (37.4) |
Tumor size (cm) | |
<2.0 | 616 (52.1) |
2.0–4.0 | 272 (23.0) |
>4.0 | 295 (24.9) |
Grade (WHO 2010 classification) | |
G1 | 608 (51.4) |
G2 | 270 (22.8) |
G3 | 305 (25.8) |
Tumor type | |
NET | 881 (74.5) |
NEC | 261 (22.1) |
MANEC | 41 (3.5) |
T category (ENETS criteria) | |
T1 | 510 (43.1) |
T2 | 220 (18.6) |
T3 | 314 (26.5) |
T4 | 139 (11.7) |
N category (ENETS criteria) | |
N0 | 846 (71.5) |
N1 | 337 (28.5) |
M category (ENETS criteria) | |
M0 | 925 (78.2) |
M1 | 258 (21.8) |
TNM stage (ENETS criteria) | |
I | 479 (40.5) |
II | 246 (20.8) |
III | 200 (16.9) |
IV | 258 (21.8) |
Surgery | |
Yes | 1016 (85.9) |
No | 167 (14.1) |