| 0 |
In situ, intraepithelial, noninvasive |
| 1 |
Localized only (localized, NOS)
- Confined to gland of origin |
| 2 |
Regional by direct extension only
- Adjacent connective/soft tissue
- Adjacent organ(s)/structure(s) for pituitary and craniopharyngeal duct
+ Cavernous sinus
+ Infundibulum
+ Pons
+ Sphenoid body and sinuses
- Adjacent organ(s)/structure(s) for pineal
+ Infratentorial and central brain |
| 7 |
Distant site(s)/lymph node(s) involved
- Distant site(s) (including further contiguous extension)
- Distant lymph node(s), NOS
- Distant metastasis, NOS
+ Carcinomatosis
+ Distant metastasis WITH or WITHOUT distant lymph node(s) |
| 8 |
Benign or borderline brain |
| 9 |
Unknown if extension or metastasis |
