Table 1.
Clinicopathological characteristics of 25 patients with gastric neuroendocrine tumors treated by endoscopic submucosal dissection.
| Case no. | Age, y | Gender | Location | Macroscopic appearance | Clinicopathological type | Size, mm | En bloc resection | Depth of invasion | WHO classification | Lateral margin | Vertical margin | Vessel invasion | Complication | Additional surgery | Followup, mo |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 36 | F | Gastric body | Submucosal tumor | I | 4, 4, 3 | Yes | Mucosa | NET-G1 | (−) | (−) | Absent | None | None | 55 |
| 2 | 41 | M | Gastric antrum | Submucosal tumor | III | 10 | Yes | Submucosa | NET-G1 | (−) | (−) | Absent | None | None | 52 |
| 3 | 71 | M | Gastric body | Submucosal tumor | III | 18 | Yes | Submucosa | NET-G1 | (−) | (−) | Absent | None | Reject | 45 |
| 4 | 53 | M | Gastric body | Submucosal tumor | I | 5 | Yes | Submucosa | NET-G1 | (−) | (−) | Absent | None | None | 44 |
| 5 | 55 | F | Gastric body | Submucosal tumor | III | 10 | Yes | Submucosa | NET-G1 | (−) | (−) | Absent | None | None | 41 |
| 6 | 82 | F | Gastric fundus | Submucosal tumor | III | 30 | Yes | Submucosa | NET-G2 | (−) | (−) | Absent | None | Reject | 40 |
| 7 | 35 | F | Gastric fundus | Polyp | I | 6 | Yes | Submucosa | NET-G1 | (−) | (−) | Absent | None | None | 38 |
| 8 | 40 | F | Gastric body | Polyp | I | 6 | Yes | Submucosa | NET-G1 | (−) | (−) | Absent | None | None | 35 |
| 9 | 47 | F | Gastric body | Submucosal tumor | I | 4 | Yes | Submucosa | NET-G1 | (−) | (−) | Absent | None | None | 35 |
| 10 | 56 | F | Gastric body | Polyp | I | 3, 2 | Yes | Mucosa | NET-G1 | (−) | (−) | Absent | None | None | 31 |
| 11 | 51 | F | Gastric body | Submucosal tumor | III | 8 | Yes | Submucosa | NET-G1 | (−) | (−) | Absent | None | None | 29 |
| 12 | 55 | M | Gastric body | Polyp | I | 8, 3, 3 | Yes | Submucosa | NET-G1 | (−) | (−) | Absent | None | None | 28 |
| 13 | 55 | M | Gastric body | Polyp | I | 4 | Yes | Submucosa | NET-G1 | (−) | (−) | Absent | None | None | 28 |
| 14 | 57 | M | Gastric body | Submucosal tumor | III | 15 | Yes | Submucosa | NET-G1 | (−) | (−) | Absent | Delayed bleeding | Reject | 26 |
| 15 | 35 | F | Gastric body | Submucosal tumor | III | 25 | Yes | Submucosa | NET-G2 | (−) | (−) | Absent | None | Yes | 25 |
| 16 | 45 | F | Gastric body | Polyp | I | 6, 3 | Yes | Submucosa | NET-G1 | (−) | (−) | Absent | None | None | 22 |
| 17 | 48 | F | Gastric body | Polyp | I | 5 | Yes | Submucosa | NET-G1 | (−) | (−) | Absent | None | None | 21 |
| 18 | 55 | M | Gastric body | Polyp | I | 5 | Yes | Submucosa | NET-G1 | (−) | (−) | Absent | None | None | 20 |
| 19 | 65 | F | Cardia | Submucosal tumor | III | 20 | Yes | Submucosa | NET-G1 | (−) | (−) | Absent | None | Reject | 20 |
| 20 | 35 | F | Gastric fundus | Erosion | I | 5, 3 | Yes | Submucosa | NET-G1 | (−) | (−) | Absent | None | None | 20 |
| 21 | 47 | M | Gastric fundus | Polyp | I | 4 | Yes | Mucosa | NET-G1 | (−) | (−) | Absent | None | None | 20 |
| 22 | 57 | F | Gastric body | Polyp | I | 8 | Yes | Mucosa | NET-G1 | (−) | (−) | Absent | None | None | 18 |
| 23 | 52 | F | Gastric body | Superficial ulcer | III | 15 | Yes | Submucosa | NET-G2 | (−) | (−) | Absent | None | Reject | 12 |
| 24 | 40 | F | Gastric body | Submucosal tumor | III | 20, 5 | Yes | Submucosa | NET-G1 | (−) | (−) | Absent | None | Reject | 11 |
| 25 | 70 | F | Gastric body | Erosion | I | 5 | Yes | Mucosa | NET-G1 | (−) | (−) | Absent | None | None | 7 |
NET: neuroendocrine tumor. Reject: the patient rejected the additional surgery.