Table 3. Characteristics of 14 pathologically confirmed subepithelial tumors.
| No. | Initial size, mm | Duration until interval change, mon | Follow-up size, mm | Echogenicity change | Ulcerative change | Layer of origin | EUS-FNAB | Tx | Pathologic diagnosis |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 8.4 | 69 | 8.4 | No | Yes | 2 | No | ER | Leiomyoma |
| 2 | 20 | 51 | 25 | Yes (heterogeneity, a cystic space) | No | 4 | No | OP | GIST, low risk |
| 3 | 15 | 36 | 22 | No | No | 4 | No | OP | Leiomyoma |
| 4 | 23 | 4 | 33 | No | No | 4 | Yes | OP | GIST, low risk |
| 5 | 9.4 | 49 | 11 | No | Yes | 2 | No | ER | GCT |
| 6 | 11 | 29 | 18 | No | No | 4 | No | OP | Leiomyoma |
| 7 | 15 | 38 | 14 | No | Yes | 2 | No | ER | Leiomyoma |
| 8 | 10 | 11 | 13 | No | No | 2 | No | ER | GCT |
| 9 | 6.1 | 17 | 8 | No | No | 2 | No | ER | Leiomyoma |
| 10 | 20 | 56 | 43 | No | No | 4 | Yes | obs | Leiomyoma |
| 11 | 20 | 24 | 20 | No | Yes | 4 | Yes | obs | Leiomyoma |
| 12 | 15 | 42 | 22 | No | No | 4 | Yes | obs | Leiomyoma |
| 13 | 20 | 38 | 25 | No | No | 4 | Yes | obs | Leiomyoma |
| 14 | 12 | 24 | 22 | No | No | 4 | Yes | obs | Leiomyoma |
EUS-FNAB = endoscopic ultrasound-guided fine needle aspiration biopsy, Tx = treatment, ER = endoscopic resection, OP = operation, GIST = gastrointestinal stromal tumor, GCT = granular cell tumor, obs = observation.