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Morphologic features (n = 32)
| Morphology | Number | Percentage |
|---|---|---|
| Tumor cell differentiation | ||
| Well (Grade I) | 18 | 56.3 |
| Moderate (Grade II) | 10 | 31.3 |
| Poor (Grade III) | 4 | 12.4 |
| Tumor giant cells | 10 | 31.3 |
| Dutcher's body | 4 | 12.5 |
| Necrosis | 11 | 34.4 |
| Amyloid deposition | 6 | 18.8 |
| Blood cell lake | 12 | 37.5 |
| "Starry Sky" pattern | 3 | 9.4 |
