| Symptoms and signs | No. of patients | Postoperative |
| Headache | 6 | Improvement |
| Diplopia | 6 | Improvement |
| Brainstem affection | 2 | Improvement |
| Lower cranial nerves | 2 |
|
| Hormonal disturbance | 1 | No improvement |
| Visual affection | 1 | Improvement |
| Gait disturbance | 1 | No improvement |