| Clinical presentation | Olfactory groove meningioma (n = 9) | |
| No. of patients | Percentage | |
| Headache | 9 | 100% |
| Anosmia | 7 | 77.7% |
| Mental disturbance (dementia, memory affection, depression) | 6 | 66.6% |
| Seizure | 2 | 22.25 |
| Visual disturbance | 1 | 11.1% |