Collaborative Stage

Collaborative Stage for TNM 7 - Revised 01/14/2010 [ Schema ]

MouthOther

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 bone involvement is limited to the cortex. 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, 775, 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 Map AJCC 7	TNM Map AJCC 6	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 invaded	^	*	L	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	Adjacent oral cavity	^	*	RE	RE
535	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
600	Oropharynx: Inferior surface of soft palate Lateral pharyngeal wall Lingual surface of epiglottis Vallecula	^	*	RE	RE
605	600 + 535 (Any structure in 600 + Any structure in 535)	^	*	D	D
700	OBSOLETE DATA RETAINED V0200 Extension to adjacent structures: Mandible Maxilla Maxillary antrum (sinus) Nasal cavity Skin of face/neck Tongue	ERROR	T4a	D	D
705	Tongue	T4a	T4a	D	D
710	Deep (extrinsic) muscle of tongue: Genioglossus Hyoglossus Palatoglossus Styloglossus	T4a	T4a	D	D
720	OBSOLETE DATA CONVERTED V0200 See code 800 Skull	ERROR	ERROR	ERROR	ERROR
725	Trabecular bone of mandible or maxilla	T4a	T4a	D	D
735	Maxillary antrum (sinus) Nasal cavity Skin of face/neck	T4a	T4a	D	D
750	OBSOLETE DATA RETAINED V0200 Base of skull Encases internal carotid artery Masticator space Pterygoid plates	ERROR	T4b	D	D
775	Stated as T4a with no other information on extension	T4a	T4a	D	D
788	Specified bone (other than maxilla, mandible, and bones in codes 790 and 800)	T4b	T4b	D	D
790	Masticator space Pterygoid plates	T4b	T4b	D	D
800	Further contiguous extension: 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	D	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 605 ONLY, the T category for AJCC 7th Edition staging is assigned based on the value of Tumor Size, as shown in the Extension Size Table for this site.
* For Extension codes 100 through 605 ONLY, the T category for AJCC 6th Edition staging is assigned based on the value of Tumor Size, as shown in the Extension Size Table for this site.