Table 1.
Clinical characteristics
| Patient No | Age | Sex | Presenting symptom | Tumour location | Previous surgery |
| 1 | 63 | F | Decreased vision | Right cavernous sinus | Transorbital craniotomy |
| 2 | 54 | F | Decreased vision | Planum sphenoidale | Craniotomy |
| 3 | 37 | F | Decreased vision | Suprasellar | Trans-orbital craniotomy |
| 4 | 77 | F | Diplopia | Right sphenoid wing | – |
| 5 | 76 | M | Decreased vision | Right sphenoid wing | Craniotomy |
| 6 | 47 | F | Decreased vision | Left cavernous sinus | – |
| 7 | 69 | F | Pressure in the eye | Left sphenoid wing | Two craniotomies |
| 8 | 55 | M | Decreased vision | Clivus | – |
| 9 | 60 | F | Diplopia | Right sphenoid wing | Craniotomy for biopsy only |
| 10 | 73 | F | Decreased vision | Left sphenoid wing | Craniotomy |
| 11 | 45 | F | Decreased vision | Right sphenoid wing | – |
| 12 | 29 | M | Decreased vision | Left sphenoid wing | Two craniotomies |
| 13 | 67 | M | Decreased | Clivus | – |