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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]