| CODE/DESCRIPTION | 
- 
- DESCRIPTION:    In situ
 
 
- 
- DESCRIPTION:    Unknown
 
 
- 
- DESCRIPTION:    Cerebral hemisphere
 
 
- 
- DESCRIPTION:    Cerebellum on one side
 
 
- 
- DESCRIPTION:    Brain stem on one side
 
 
- 
- DESCRIPTION:    Confined to brain/meninges NOS
 
 
- 
- DESCRIPTION:    Both cerebellum & brain stem
 
 
- 
- DESCRIPTION:    Upon ventricular system
 
 
- 
- DESCRIPTION:    Tumor crosses the midline
 
 
- 
- DESCRIPTION:    Supratentorial to cerebellum or stem
 
 
- 
- DESCRIPTION:    Infratentorial to cerebrum
 
 
- 
- DESCRIPTION:    Skull,dura,vessels,nerves
 
 
- 
- DESCRIPTION:    Nasopharynx,post-pharynx,cavity,out-cns,csf
 
 
- 
- DESCRIPTION:    Further extension
 
 
- 
- DESCRIPTION:    Metastasis
 
 
 
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