Table 3.
Histopathological characteristics of the tumors resected
| Patients, n = 34 (%) | |
|---|---|
| Tumor morphology | |
| Spindle | 24 (70.6%) |
| Epithelioid | 9 (26.5%) |
| Mixed | 1 (2.9%) |
| Tumor size | |
| < 2 cm | 0 (0%) |
| 2–5 cm | 6 (17.6%) |
| 5–10 cm | 27 (79.4%) |
| > 10 cm | 1 (2.9%) |
| Mitotic index per 50 HPF | |
| Low (< 5/5 mm) | 30 (88.2%) |
| High (> 5/5 mm) | 4 (11.8%) |
| Necrosis | |
| No | 32 (94.1%) |
| Yes | 2 (5.9%) |
| CD117 | |
| Negative | 3 (8.8%) |
| Positive | 31 (91.2%) |
| CD34 | |
| Negative | 1 (2.9%) |
| Positive | 33 (97.1%) |
| DOG1 | |
| Positive | 30 (100%) |
| NIH risk | |
| Very low | 0 (0%) |
| Low | 9 (26.5%) |
| Intermediate | 16 (47.1%) |
| High | 9 (26.5%) |
NIH National Institute of Health, HPF high power field