Table 1: Histologic type and grade of tumors.

Tumor grade

Tumor type

N°

II

Astrocytoma

3

III

Anaplastic astrocytoma

8

IV

Glioblastoma

23

II

Oligodendroglioma

6

III

Anaplastic oligodendroglioma

5

II

Mixed oligoastrocytoma

1

III

Anaplastic oligoastrocytoma

2

No surgery

4

Total

 

52