Summary of immunohistochemical findings in 41 patients with gastrointestinal stromal tumours
| Chemical | No. of positive findings (%) |
|---|---|
| CD117 | 40 (97.6) |
| CD34 | 33 (80.5) |
| α-Smooth muscle actin | 23 (56.1) |
| Desmin | 11 (26.8) |
| S-100 | 14 (34.1) |
| Ki67 index | |
| < 10% | 34 (82.9) |
| ≥ 10% | 7 (17.1) |