Distribution
Intracranial (60%)
Supratentorial : 30%
Infratentorial : 70%
Spinal (30%)
Intramedullary
(thoracal) (10%)
Extramedullary
(lumbar) (20%)
Metastases
Extramedullary
< 5 – 10%
4-16 years (ca)
Supratent : 35%
Infratent : 50%
4-16 years (ca)
Intramed : 10%
Conus 5%
Schiffer et al., 1991
Ependymoma