Table 1.

Patient Characteristics.

Characteristics	All patients (N = 9)
	No.	%
Age classification
<18	3	33.33
18–49	4	44.45
≥50	2	22.22
gender
Male	5	55.56
Female	4	44.45
WHO grade classes
II	4	44.45
IV	5	55.55
Postoperative information
Normal	2	22.22
Recurrence	6	66.67
Lost	1	11.11