Collaborative Stage

Collaborative Stage for TNM 7 - Revised 07/23/2009 [ Schema ]

Orbit

CS Extension

Note 1: AJCC stages only sarcomas of the orbit. AJCC values will be derived as NA for all non-sarcoma histologies coded to this site.
Note 2: Code 000 may be used only for non-sarcoma histologies coded to this site. Sarcomas do not present as in situ or noninvasive tumors.

Code	Description	TNM 7 Map	TNM 6 Map	SS77 Map	SS2000 Map
000	In situ; noninvasive; intraepithelial	TX	TX	IS	IS
100	Tumor confined to orbit Localized, NOS	^	*	L	L
200	Stated as T1 with no other information on extension	^	*	L	L
300	Stated as T2 with no other information on extension	^	*	L	L
400	Invasion of orbital tissues and/or bony walls Stated as T3 with no other information on extension	T3	T3	RE	RE
600	Extension to: Adjacent paranasal sinuses Cranium	T4	T4	RE	RE
650	Extension to: Eyelids Temporal fossa Nasal Cavity	T4	T4	D	D
700	Central nervous system	T4	T4	D	D
800	Further contiguous extension	T4	T4	D	D
810	Stated as T4 with no other information on extension	T4	T4	RE	RE
950	No evidence of primary tumor	T0	T0	U	U
999	Unknown extension Primary tumor cannot be assessed Not documented in patient record	TX	TX	U	U

* For Extension code 100, 200, and 300 ONLY, the T category for AJCC 6th Edition staging is assigned based on the value of CS Tumor Size, as shown in the Extension Size Table for this site.
^ For Extension code 100, 200, and 300 ONLY, the T category for AJCC 7th Edition staging is assigned based on the value of CS Tumor Size, as shown in the Extension Size Table for this site.