paediatrics Brussels 17

Medulloblastoma Chang Staging

• M0 - No evidence of metastases • M1 - No metastases on scan, but unequivocal tumour cells seen in CSF from LP >14 days after surgery • M2 - Metastases in supratentorial meninges

• M3 - Metastases in spinal meninges ➢ [M4 – metastases beyond CNS]