Collaborative Stage

Collaborative Stage for TNM 7 - Revised 11/15/2009 [ Schema ]

ParotidGland

CS Extension

Note 1: AJCC considers "in situ carcinoma of salivary gland" an impossible diagnosis. Any case so coded will be mapped to an unknown AJCC stage, in situ Summary Stage.
Note 2: Periosteum is a fibrous membrane that wraps the outer surface of bones. Mucoperiosteum is a compound structure of mucous membrane and periosteum. Cortical bone is the dense compact outer layer of bone.
Note 3: Use code 300 for localized tumor ONLY if no information is available to assign codes 100, 305, or 310.
Note 4: Use code 305, 310, 410, 725, 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; non-invasive; intraepithelial	TX	TX	IS	IS
100	Invasive tumor confined to gland/duct of origin Multiple foci confined to substance of parotid gland	^	*	L	L
300	Localized, NOS	^	*	L	L
305	Stated as T1 with no other information on extension	^	*	L	L
310	Stated as T2 with no other information on extension	^	*	L	L
350	Microscopic extraparenchymal extension ONLY to periglandular soft/connective tissue	^	*	RE	RE
400	Macroscopic extraparenchymal extension to: Periglandular soft/connective tissue Another major salivary gland (submaxillary, sublingual) Pharyngeal mucosa Skeletal muscle: Digastric Masseter Pterygoid Sternocleidomastoid Stylohyoid	T3	T3	RE	RE
402	Maxillary artery Facial artery or vein	T3	T3	RE	RE
405	Spinal accessory nerve	T3	T3	RE	D
408	Stated as T3 with no other information on extension	T3	T3	RE	RE
420	External auditory meatus Skin overlying gland	T4a	T4a	RE	RE
450	Periosteum of mandible	T4a	T4a	RE	RE
500	Auricular nerve Mandible Mastoid process	T4a	T4a	RE	RE
510	(420-500) + 405 (Any structure in codes 420-500 + Spinal accessory nerve)	T4a	T4a	RE	D
700	Facial (7th) nerve	T4a	T4a	RE	D
720	OBSOLETE DATA CONVERTED V0200 Moved to code 405 to correct AJCC mapping Spinal accessory nerve	ERROR	ERROR	ERROR	ERROR
725	Stated as T4a with no other information on extension	T4a	T4a	RE	RE
740	Carotid artery (encased) Jugular vein	T4b	T4b	RE	RE
750	OBSOLETE DATA RETAINED V0200 Note: Maxillary artery, Facial artery or vein moved to code 402 to correct AJCC mapping Major blood vessel(s): Carotid artery Facial artery or vein Jugular vein Maxillary artery	ERROR	T4b	RE	RE
755	740 + 405 (Any structure in code 740 + Spinal accessory)	T4b	T4b	RE	D
758	740 + 700 (Any structure in code 740 +Facial nerve)	T4b	T4b	RE	D
760	Base of skull Skull, NOS	T4b	T4b	RE	D
770	Pterygoid plates	T4b	T4b	D	D
800	Further contiguous extension	T4b	T4b	D	D
810	Stated as T4b with no other information on extension	T4b	T4b	RE	RE
815	Stated as T4 NOS with no other information on extension	T4NOS	T4NOS	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 codes 100-350 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 100-350 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.