Table 1. Patient characteristics.

Patient variable (N = 74)	Number of patients (%)
Age in years	Range—19–79 Median—48 Mean—47.2 (SD ± 13.5)
Sex  Male  Female	57 (77%) 17 (23%)
Common clinical presentation  Headache  Unilateral weakness  Seizures  Vomiting  Memory disturbance  Altered Behaviour  Visual disturbances	43 (58%) 16 (21%) 15 (20%) 11 (15%) 7 (9%) 6 (8%) 5 (7%)
Mean duration of symptoms	3.2 months(0.1 – 12 months)
Performance status  ECOG PS 1  ECOG PS 2  ECOG PS 3	27 (36%) 31 (42%) 16 (22%)
Grouping according to relationship to SVZ [6]  I  II  III  IV	46 (62%) 6 (8%) 17 (23%) 5 (7%)
Tumour contacting SVZ  Yes  No	52 (70%) 22 (30%)

ECOG PS, Eastern Cooperative Oncology Group Performance Status; SVZ, Sub ventricular zone