Table 1 Patient demographics and tumor characteristics

Age, mean (SD)

9.5 (5.5)

6 (5.6)

Range

1–18

0–11

Sex n (%)

Female

12 (44)

1 (33)

Male

15 (56)

2 (67)

Tumor type,^a n (%)

Embryonal

6 (22)

Medulloblastoma

4

Embryonal (NOS)

2

Glioma

13 (48)

Anaplastic ganglioglioma

1

Desmoplastic ganglioglioma

2

Dysembryoplastic neuroepithelial tumor

2

Dysplastic gangliocytoma

1

Glioblastoma

1

Pilocytic astrocytoma

5

Low-grade glioma

1

Ependymoma

7 (30)

Subependymoma

1

Ependymoma

5

Myxopapillary ependymoma

1

WHO grade n (%)

I

12 (44)

II

5 (19)

III

2 (7)

IV

8 (30)

Sample location n (%)

Supratentorial

9 (33)

3 (100)

Subtentorial

17 (63)

Spinal

1 (4)

Median follow up (years)

14

Mean time to recurrence (years)

1.5