Figure 1.

Figure 2.

Figure 3.

Figure 4.

Figure 5.

Comparative immunohistochemical profile of gastric submucosal neoplasms
| Marker | GGT | GIST | Gastric NET | Schwannoma | Leiomyoma | Hemangioma |
|---|---|---|---|---|---|---|
| CD117 (KIT) | Negative | Positive | Negative | Negative | Negative | Negative |
| DOG1 | Negative | Positive | Negative | Negative | Negative | Negative |
| SMA | Positive | Variable | Negative | Negative | Positive | Variable |
| Vimentin | Positive | Variable | Variable | Positive | Positive | Variable |
| S100 | Negative | Negative | Negative | Positive | Negative | Negative |
| Desmin | Negative | Negative | Negative | Negative | Positive | Negative |
| CD34 | Negative* | Variable | Negative | Negative | Negative | Positive |
| CD31 | Negative | Negative | Negative | Negative | Negative | Positive |
| Chromogranin | Negative | Negative | Positive | Negative | Negative | Negative |
| Synaptophysin | Variable** | Negative | Positive | Negative | Negative | Negative |
| Ki-67 | Very low (<2%) | Variable | Stratifies grade | Low | Low | Low |