CS Site-Specific Factor 1

This input is used for staging

Extension Evaluated at Enucleation

Notes

**Note 1**: True invasion of the choroid is defined as one or more solid nests of tumor cells that fills or replaces the choroid and has pushing borders. This is distinguished from artifactual invasion, or groups of tumor cells in the open spaces beween intraocular structures, extraocular tissues, and/or subarachnoid space. Focal choroidal invasion is a solid nest of tumor measuring less than 3 millimeter (mm) in maximum diameter. Massive choroidal invasion is a solid tumor nest 3 mm or more in maximum diameter. **Note 2**: For correct calculation of derived staging fields for this schema, CS Extension and CS Site-Specific Factor 1, Extension Evaluated at Enucleation, must both be coded, whether or not an enucleation was performed. Information from enucleation is excluded from CS Extension and coded only in CS Site-Specific Factor 1. **Note 3**: For information regarding stage calculations, refer to CS Extension Note 3 and the special calculation extra tables.

Default

960

NAACCR Item

NAACCR #2880

Metadata

CCCR_ESSENTIAL_FOR_TNM_CLASSIFICATION
NPCR_REQUIRED_VERSION_0202_FORWARD

Code	Description	AJCC 7 T	AJCC 6 T	Summary Stage 1977 T	Summary Stage 2000 T
000	OBSOLETE DATA CONVERTED V0200 See code 970 No enucleation performed	ERROR:	ERROR:	ERROR	ERROR
030	OBSOLETE DATA CONVERTED V0200 See code 300 Tumor(s) confined to retina, NOS	ERROR:	ERROR:	ERROR	ERROR
041	OBSOLETE DATA CONVERTED V0200 See code 410 Tumor cells in the vitreous body	ERROR:	ERROR:	ERROR	ERROR
043	OBSOLETE DATA CONVERTED V0200 See code 430 Tumor(s) confined to subretinal space No optic nerve or choroidal invasion	ERROR:	ERROR:	ERROR	ERROR
044	OBSOLETE DATA CONVERTED V0200 See code 440 Tumor invades optic nerve up to, but not through, level of lamina cribrosa	ERROR:	ERROR:	ERROR	ERROR
046	OBSOLETE DATA CONVERTED V0200 See code 460 Tumor invades choroid focally	ERROR:	ERROR:	ERROR	ERROR
047	OBSOLETE DATA CONVERTED V0200 See code 470 Tumor invades optic nerve up to, but not through, level of lamina cribrosa AND invades the choroid focally	ERROR:	ERROR:	ERROR	ERROR
048	OBSOLETE DATA CONVERTED V0200 See code 440 Optic nerve as far as lamina cribrosa, NOS	ERROR:	ERROR:	ERROR	ERROR
049	OBSOLETE DATA CONVERTED V0200 See code 490 Minimal invasion of optic nerve and/or optic coats, NOS	ERROR:	ERROR:	ERROR	ERROR
054	OBSOLETE DATA CONVERTED V0200 See code 540 Tumor invades optic nerve through the level of lamina cribrosa but not to line of resection	ERROR:	ERROR:	ERROR	ERROR
056	OBSOLETE DATA CONVERTED V0200 See code 560 Tumor massively invadeschoroid	ERROR:	ERROR:	ERROR	ERROR
057	OBSOLETE DATA CONVERTED V0200 See code 570 Tumor invades optic nerve through level of lamina cribrosa but not to line of resection AND massively invades choroid	ERROR:	ERROR:	ERROR	ERROR
059	OBSOLETE DATA CONVERTED V0200 See code 590 Significant invasion of optic nerve and/or optic coats, NOS	ERROR:	ERROR:	ERROR	ERROR
072	OBSOLETE DATA CONVERTED V0200 See code 765 Extraocular extension including: Both anteriorly or posteriorly into orbit Optic nerve to line of resection Orbit through sclera Extension into subarachnoidal space of optic nerve Extension to apex of orbit	ERROR:	ERROR:	ERROR	ERROR
074	OBSOLETE DATA RETAINED V0200 Extraocular extension including into: Brain Brain beyond the chiasm	ERROR:	T4	D	D
075	OBSOLETE DATA RETAINED V0200 Other adjacent extraocular extension	ERROR:	T4	RE	RE
080	OBSOLETE DATA RETAINED V0200 Further contiguous extension	ERROR:	T4	D	D
095	OBSOLETE DATA CONVERTED V0200 See code 950 No evidence of primary tumor	ERROR:	ERROR:	ERROR	ERROR
096	OBSOLETE DATA CONVERTED V0200 See code 960 Unknown if enucleation done	ERROR:	ERROR:	ERROR	ERROR
300	Tumor(s) confined to retina, NOS	T1	T1	L	L
410	Tumor cells in the vitreous body WITHOUT optic nerve invasion and WITHOUT choroidal invasion	T1	T1	L	L
430	Tumor(s) confined to subretinal space WITHOUT optic nerve invasion and WITHOUT choroidal invasion	T1	T1	L	L
435	Tumor confined to eye NOS WITHOUT optic nerve and WITHOUT choroidal invasion Stated as pT1 with no other information on extension	T1	T1	L	L
440	Tumor invades optic nerve up to, but not through, level of lamina cribrosa WITHOUT invasion of choroid	T2a	T2a	L	L
460	Tumor invades choroid focally WITHOUT invasion of optic nerve	T2a	T2b	L	L
465	Stated as pT2a with no other information on extension	T2a	T2a	L	L
470	Tumor invades optic nerve up to, but not through, level of lamina cribrosa WITH focal invasion of the choroid Stated as pT2b with no other information on extension	T2b	T2c	L	L
490	Tumor with minimal optic nerve and/or choroidal invasion, NOS Stated as pT2 [NOS] with no other information on extension	T2NOS	T2NOS	L	L
540	Tumor invades optic nerve through the level of lamina cribrosa but not to line of resection WITHOUT massive invasion of choroid	T3a	T3a	RE	RE
550	Tumor massively invades choroid WITHOUT invasion of optic nerve through level of lamina cribrosa	T3a	T3b	RE	RE
560	Tumor with significant optic nerve and/or choroidal invasion Stated as pT3a with no other information on extension	T3a	T3a	RE	RE
570	Tumor invades optic nerve through level of lamina cribrosa but not to line of resection WITH massive invasion of choroid Stated as pT3b with no other information on extension	T3b	T3c	RE	RE
590	Tumor with significant optic nerve and/or choroidal invasion, NOS Stated as pT3 [NOS] with no other information	T3NOS	T3NOS	RE	RE
725	Invasion of optic nerve to resection line WITHOUT extraocular extension Stated as pT4a with no other information on extension	T4a	T4	RE	RE
745	Extraocular extension WITHOUT invasion of optic nerve to resection line including: Invasion of orbit through sclera Extension anteriorly or posteriorly into orbit Extension into subarachnoidal space of optic nerve Extension to apex of orbit	T4NOS	T4	RE	RE
755	Extraocular extension WITHOUT invasion of optic nerve to resection line including: Extension to brain Extension to brain beyond chiasm	T4NOS	T4	D	D
765	Invasion of optic nerve to resection line WITH extraocular extension including: Invasion of orbit through sclera Extension anteriorly or posteriorly into orbit Extension into subarachnoidal space of optic nerve Extension to apex of orbit	T4b	T4	RE	RE
775	Invasion of optic nerve to resection line WITH extraocular extension including: Extension to brain Extension to brain beyond chiasm	T4b	T4	D	D
790	Stated as pT4b with no other information on extension	T4b	T4	RE	RE
810	Stated as pT4 [NOS] with no other information on extension	T4NOS	T4	RE	RE
950	No evidence of primary tumor	T0	T0	U	U
960	Unknown if enucleation performed	TX	TX	U	U
970	No enucleation performed	TX	TX	VALUE:U	U
999	Enucleation performed: Extension unknown	TX	TX	U	U

For this site, extension is coded in two CS fields:CS Extension (clinical extension), and CS Site-Specific Factor 1 - Extension Evaluated at Enucleation. The mapping values for the T category for AJCC Stage, SS77, and SS2000 and the associated c, p, y, or a indicator are assigned based on the values in CS Extension, CS TS/Ext Eval, and Site-Specific Factor 1 as shown in the Special Calculation Table for AJCC Stage and Special Calculation Table for SEER Summary Stage.