| CODE/DESCRIPTION | 
- 
- DESCRIPTION:    In situ
 
 
- 
- DESCRIPTION:    Unknown
 
 
- 
- DESCRIPTION:    Confined to orbit
 
 
- 
- DESCRIPTION:    Diffuse invasion of orbital tissues/bony walls
 
 
- 
- DESCRIPTION:    Adjacent paranasal sinuses; cranium
 
 
- 
- DESCRIPTION:    Further extension
 
 
- 
- DESCRIPTION:    Metastasis
 
 
 
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