Collaborative Stage

Collaborative Stage for TNM 7 - Revised 01/13/2010 [ Schema ]

BuccalMucosa

CS Extension

Note 1: Periosteum is a fibrous membrane that wraps the outer surface of bones. Cortical bone is the dense compact outer layer of the bone. Trabecular, cancellous, or spongy bone (spongiosa) is a porous network of tissue filling the interior of bone, decreasing weight and allowing room for blood vessels and marrow.
Note 2: AJCC assigns T value based on size when involvement is limited to cortical bone. Involvement through cortical bone is required for assignment of T4a.
Note 3: Use code 300 for localized tumor ONLY if no information is available to assign code 100, 200, 405, 410, or 415.
Note 4: Use code 405, 410, 415, 755, 810, or 815 if the physician's assignment of T category is the ONLY information available about the extent of the tumor.

Code	Description	TNM 7 Map	TNM 6 Map	SS77 Map	SS2000 Map
000	In situ; noninvasive; intraepithelial	Tis	Tis	IS	IS
100	Invasive tumor confined to: Lamina propria Submucosa	^	*	L	L
200	Musculature (buccinator)	^	*	RE	L
300	Localized, NOS	^	*	L	L
405	Stated as T1 with no other information on extension	^	*	L	L
410	Stated as T2 with no other information on extension	^	*	L	L
415	Stated as T3 with no other information on extension	^	*	L	L
500	Lip(s) including commissure	^	*	RE	RE
510	Gingiva	^	*	RE	RE
525	Cortical bone of mandible Cortical bone of maxilla Mandible, NOS Maxilla, NOS Cortical bone, NOS (not specified in higher codes) Bone, NOS (not specified in higher codes)	^	*	D	D
550	Subcutaneous soft tissue of cheek	^	*	RE	RE
600	Lateral pharyngeal wall Tonsillar pillars and fossae Tonsils	^	*	RE	RE
605	(550 or 600) + 525 (Any structure in code 550 or 600 + Any structure in code 525)	^	*	D	D
620	Hard palate including cortical palatine bone Soft palate	^	*	D	D
650	OBSOLETE DATA CONVERTED V0200 Assign to T1-3 category per curator, see code 550 Subcutaneous soft tissue of cheek	ERROR	ERROR	ERROR	ERROR
660	Skin of cheek (WITH or WITHOUT ulceration)	T4a	T4a	RE	D
665	660 + (620 or 605) (Skin of cheek + Any structure in code 605)	T4a	T4a	D	D
670	OBSOLETE DATA CONVERTED V0200 See code 740 Maxillary sinus	ERROR	ERROR	ERROR	ERROR
700	OBSOLETE DATA RETAINED V0200 Bone (cortical): Mandible Maxilla	ERROR	T4a	D	D
725	Trabecular bone of maxilla, mandible, or palatine bone	T4a	T4a	D	D
730	OBSOLETE DATA CONVERTED V0200 See code 805 Skull	ERROR	ERROR	ERROR	ERROR
740	Maxillary sinus (antrum) Nasal cavity	T4a	T4a	D	D
750	Tongue Deep (extrinsic) muscle of tongue: Genioglossus Hyoglossus Palatoglossus Styloglossus	T4a	T4a	D	D
755	Stated as T4a with no other information on extension	T4a	T4a	RE	D
788	Specified bone (other than maxilla, mandible, palatine, or bones in codes 790 and 800)	T4b	T4b	D	D
790	OBSOLETE DATA RETAINED V0200 Other contiguous extension: Base of skull Encases internal carotid artery Masticator space Pterygoid plates	ERROR	T4b	D	D
795	Masticator space Pterygoid plates	T4b	T4b	D	D
800	OBSOLETE DATA RETAINED V0200 Assign hard and soft palate to T1-3 category per curator, see code 620 Further contiguous extension: Hard palate Soft palate	ERROR	T4b	D	D
805	Further contiguous extension including: Skull Skull base Internal carotid artery (encased)	T4b	T4b	D	D
810	Stated as T4b with no other information on extension	T4b	T4b	D	D
815	Stated as T4 [NOS] with no other information on extension	T4NOS	T4NOS	RE	D
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 codes 100 through 620 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.
* For Extension codes 100 through 620 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.