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Symptoms of each groups at the time of Gamma Knife Radiosurgery
| Symptoms | With prior surgery | Without prior surgery |
|---|---|---|
| Headache | 11 | 18 |
| Facial numbness | 5 | 11 |
| Hearing loss | 3 | 0 |
| Ptosis | 4 | 4 |
| Ocular motility disorders | 5 | 3 |
| Visual field defect | 5 | 3 |
| Diplopia | 2 | 5 |
| Dizziness | 1 | 0 |
| Facial pain | 0 | 4 |
| Tinnitus | 1 | 0 |
| Facial paresthesia | 2 | 2 |
| Exophthalmos | 1 | 2 |
| Extremity numbness | 0 | 3 |
| Seizure | 3 | 0 |
| Facial paresis | 2 | 0 |
