Risk for spinal seeding at (first) relapse
Total
20/291
7%
WHO II
6/132
5%
WHO III
7/83
8%
RT CSA
9/96
9%
No RT CSA
4/119
3%
RT of CSF space
can be omitted
?
Vanuytsel et al, 1992
Intracranial ependymoma
Low risk for spinal seeding!