Summary of histologic diagnoses
| Tumor Group | Histologic Diagnosis | No. of Patients (n = 49) |
|---|---|---|
| Malignant (n = 36) | High-grade astrocytoma | 8 |
| High grade (n = 16) | Glioblastoma multiforme | 3 |
| Grade 3 astrocytoma | 5 | |
| Metastasis | 8 | |
| Lung cancer | 4 | |
| Breast cancer | 2 | |
| Ovarian cancer | 1 | |
| Condromyxoid sarcoma | 1 | |
| Low grade (n = 20) | Low-grade astrocytoma (grade 2) | 12 |
| Nonastrocytic gliomas | 8 | |
| Oligodendroglioma | 6 | |
| Epandimoma | 2 | |
| Benign (n = 13) | Meningioma | 7 |
| Dysembryoplastic neuroepithelial tumor | 3 | |
| Tuberculoma | 3 |