Table 3.
Results after treatment of gastric neuroendocrine tumors.
| G1 NET | G2 NET | G3 NET | Total | P value | |
|---|---|---|---|---|---|
| (n = 16) | (n = 4) | (n = 2) | (n = 22) | ||
| Treatment modality, n (%) | <0.01 | ||||
| EMR | 5 (31.3) | 1 (16.7) | 0 (0) | 6 (27.3) | |
| ESD | 7 (43.8) | 1 (16.7) | 0 (0) | 8 (36.4) | |
| Follow-up | 4 (25.0) | 0 (0) | 0 (0) | 4 (18.2) | |
| Surgical resection | 0 (0) | 2 (50.0) | 2 (100) | 4 (18.2) | |
| Tumor size, mm, mean (SD) | 4.6 (2.3) | 8.0 (3.5) | 34.0 (21.0) | 7.9 (11.0) | 0.02 |
| Depth of invasion, n (%) | 0.02 | ||||
| Mucosa or submucosa | 16 (100) | 4 (66.7) | 0 (0) | 20 (90.9) | |
| Proper muscle or deeper | 0 (0) | 0 (0) | 2 (100) | 2 (9.1) | |
| Lymphovascular invasion, n (%) | 0 (0) | 0 (0) | 2 (100) | 2 (9.1) | 0.02 |
| Lymph node metastasis, n (%) | 0 (0) | 0 (0) | 2 (100) | 2 (9.1) | 0.02 |
| Distant metastasis, n (%) | 0 (0) | 0 (0) | 2 (100) | 2 (9.1) | 0.02 |
G = grade, NET = neuroendocrine tumor, n = number, SD = standard deviation, EMR = endoscopic mucosal resection, ESD = endoscopic submucosal dissection.