Table II.
The relationship between the invasive region and surgical resection of meningioma.
| Surgical classification | ||||
|---|---|---|---|---|
| The invasive region of meningioma | Cases | Simpson grade I | Simpson grade II | Simpson grade III |
| Cerebral convexity | 18 | 18 | 0 | 0 |
| Surrounding area of parasagittal region of cerebral falx | 17 | 4 | 12 | 1 |
| Surrounding area of transverse sinus and sigmoid sinus | 8 | 2 | 6 | 0 |
| Skull | 6 | 3 | 3 | 0 |
| Cavernous sinus | 4 | 0 | 2 | 2 |
| Large blood and vessels | 4 | 0 | 1 | 3 |
| Periorbital region | 1 | 0 | 1 | 0 |
| The infiltration of brain | 1 | 1 | 0 | 0 |
| In total | 59 | 56 | 25 | 6 |