Table 2 The origin of tumor
No. of Cases | |
|---|---|
Supratentorially | 9 |
tentorium | 3 |
cerebral falx | 4 |
arachnoid sleeve of the GV | 2 |
Infratentorially | 12 |
tentorium | 4 |
inferior surface of SS | 1 |
arachnoid sleeve of GV | 5 |
posterior segment of ICV | 1 |
arachnoid membrane on the surface of pineal gland | 1 |