The Chang Staging System stage for Medulloblastoma.
National Codes:
| M0 | No evidence of metastatic disease |
| M1 | Microscopic Tumour CELLS found in Cerebrospinal Fluid (CSF) |
| M2 | Gross nodular seeding in cerebellum, cerebral subarachnoid space, or in the third or fourth ventricles |
| M3 | Gross nodular seeding in spinal subarachnoid space |
| M4 | Metastasis outside cerebrospinal axis |
This attribute is also known by these names:
| Context | Alias |
|---|---|
| plural | CHANG STAGING SYSTEM STAGES |
