Table 1.
Clinicopathologic characteristics of PNETs (n=55) and non-PNETs patients (n=58).
| Clinicopathologic characteristic | Classification | PNETs | Non-PNETs |
|---|---|---|---|
| Sex, n (%) | Male | 34 (61.8) | 25 (43.1) |
| Female | 21 (38.2) | 33 (56.9) | |
| Criteria for MEN1, n (%) | Clinical | 14 (25.5) | 10 (17.2) |
| Genetic | 24 (41.4) | ||
| Genetic with one manifestation | 5 (9.0) | 17 (29.3) | |
| Genetic with two manifestation | 36 (65.5) | 7 (12.1) | |
| Median age (years) at diagnosis (range) | 41 (18–76) | 36 (15–74)* | |
| Other NETs status, n (%) | Yes | 5 (9.1) | 1 (1.7) |
| No | 50 (90.9) | 57 (98.3) | |
| Tumor functional status, n (%) | Functioning | 18 (32.7) | |
| Non-functioning | 37 (67.3) | ||
| Tumor location, n (%) | Pancreatic head and neck | 7 (14.3) | |
| Pancreatic body and tail | 42 (85.7) | ||
| Tumor number, n (%) | 1 | 20 (37.0) | |
| 2 | 9 (16.7) | ||
| 3 | 4 (7.4) | ||
| 4 | 3 (5.6) | ||
| 5 | 3 (5.6) | ||
| >5 | 15 (27.7) | ||
| Median tumor size, cm (range) | 1.5 (0.5–10) | ||
| Operation status, n (%) | Surgery | 28 (50.9) | |
| No surgery | 27 (49.1) | ||
| Lymph node metastases, n (%) | Yes | 7 (30.4) | |
| No | 16 (69.6) | ||
| Lymphovascular invasion, n (%) | Yes | 5 (17.9) | |
| No | 23 (82.1) | ||
| Distant metastases, n (%) | Yes | 5 (9.1) | |
| No | 50 (90.9) | ||
| AJCC staging, n (%) | I | 15 (53.6) | |
| II | 13 (46.4) | ||
| Vital status at last follow-up, n (%) | Alive | 48 (87.3) | |
| Deceased | 7 (12.7) |
PNETs=pancreatic neuroendocrine tumors; MEN1=multiple endocrine neoplasia type 1; NETs=neuroendocrine tumors; AJCC=American Joint Committee on Cancer.
*
Age of patients when diagnosed with non-PNETs using most recent abdominal imaging.