Table 2. Qualitative CT findings of 595 patients with GST and GS.
| CT criteria | GST-L (n=164) | GS-L (n=13) | Puni | Pmulti | GST-S (n=329) | GS-S (n=89) | Puni | Pmulti |
|---|---|---|---|---|---|---|---|---|
| Location | 0.085 | <0.001*** | <0.001*** | |||||
| Cardia | 8 (4.9) | 0 (0.0) | 17 (5.2) | 0 (0.0) | ||||
| Fundus | 39 (23.8) | 2 (15.4) | 104 (31.6) | 3 (3.4) | ||||
| Body | 104 (63.4) | 8 (61.5) | 181 (55.0) | 62 (69.7) | ||||
| Antrum | 13 (7.9) | 3 (23.1) | 27 (8.2) | 24 (27.0) | ||||
| Contour | 0.245 | 0.256 | ||||||
| Round | 4 (2.4) | 1 (7.7) | 135 (41.0) | 45 (50.6) | ||||
| Oval | 18 (11.0) | 2 (15.4) | 113 (34.3) | 27 (30.3) | ||||
| Irregular | 142 (86.6) | 10 (76.9) | 81 (24.6) | 11 (12.4) | ||||
| Growth pattern | 0.780 | <0.001*** | <0.001*** | |||||
| Endophytic | 21 (12.8) | 1 (7.7) | 168 (51.1) | 29 (32.6) | ||||
| Exophytic | 81 (49.4) | 6 (46.2) | 117 (33.6) | 54 (60.7) | ||||
| Mixed | 62 (37.8) | 6 (46.2) | 44 (13.4) | 6 (6.7) | ||||
| Lymph node | <0.001*** | 0.001** | <0.001*** | <0.001*** | ||||
| 0–5 mm | 143 (87.2) | 4 (30.8) | 320 (97.3) | 78 (87.6) | ||||
| 5.1–10 mm | 21 (12.8) | 5 (38.5) | 9 (2.7) | 9 (10.1) | ||||
| >10 mm | 0 (0.0) | 4 (30.8) | 0 (0.0) | 2 (2.2) | ||||
| Necrosis | 157 (95.7) | 3 (23.1) | <0.001*** | 0.039* | 122 (37.1) | 5 (5.6) | <0.001*** | 0.004** |
| Calcification | 40 (23.4) | 1 (7.7) | 0.302 | 42 (12.8) | 1 (1.1) | 0.001** | 0.052 | |
| Surface ulceration | 65 (39.6) | 8 (61.5) | 0.123 | 43 (13.1) | 3 (3.4) | 0.009** | 0.780 | |
| Hemorrhage | 12 (7.2) | 0 (0.0) | 0.168 | 0 (0.0) | 0 (0.0) | |||
| Intratumoral vessel | 78 (47.6) | 2 (15.4) | 0.025 | 32 (9.7) | 7 (7.9) | 0.592 | ||
| Peritumoral exudation | 20 (12.2) | 0 (0.0) | 0.378 | 0 (0.0) | 0 (0.0) | |||
| Necrosis under the tumor wall | 130 (72.3) | 3 (23.1) | <0.001*** | 0.992 | 74 (22.5) | 3 (3.4) | <0.001*** | 0.410 |
Except where indicated, data are numbers of tumors, with percentages in parentheses. *, P<0.05; **, P<0.01; ***, P<0.001. Puni/Pmulti, value from the univariate or multivariate analysis. CT, computed tomography; GS, gastric schwannoma; GST, gastric stromal tumor; GST-L/GS-L/GST-S/GS-S, large or small GST/GS.