Table 2.

Study group

Tumor typea	Number of patients	Average age (range)	% of MAGE-A-positive tumorsb
Medulloblastoma	11	12 years (4–19)	55
Ependymoma	7	7 years (1–12)	43
Choroid plexus tumor	5	4 years (1–10)	40
Pilocytic astrocytoma (WHO grade I)	14	6 years (3–15)	64
Diffuse astrocytoma (WHO grade II)	3	10 years (5–18)	33
Anaplastic astrocytoma (WHO grade III)	5	13 years (7–19)	60
Glioblastoma (WHO grade IV)	5	13 years (3–19)	60
Glioblastoma (WHO grade IV)c	9	59 years (31–74)	100

^aAccording to WHO 2007 classification [20]

^bGene expression was determined by conventional PCR with consensus primers for the 12 genes of the MAGE-A family

^cAn extra cohort of adult patients with glioblastomas was studied to compare to pediatric glioblastomas (Fig. 2)