Collaborative Stage

Collaborative Stage for TNM 7 - Revised 09/14/2009 [ Schema ]

Retinoblastoma

CS Lymph Nodes

Note: Distant lymph node involvement is coded in the CS Lymph Node field for staging retinoblastoma in the AJCC 7th Edition. Distant lymph node involvement was coded in the CS Mets at DX field for staging retinoblastoma in the AJCC 6th Edition.

Code	Description	TNM 7 Map	TNM 6 Map	SS77 Map	SS2000 Map
000	None; no regional lymph node involvement	N0	N0	NONE	NONE
100	Regional lymph nodes Submandibular Parotid (preauricular) Cervical Regional lymph node(s), NOS	N1	N1	RN	RN
200	Distant lymph nodes	N2	*	D	D
800	Lymph nodes, NOS	N1	N1	RN	RN
999	Unknown; not stated Regional lymph node(s) cannot be assessed Not documented in patient record	NX	NX	U	U

* For CS Lymph Nodes code 200 ONLY, the N category for AJCC 6th Edition staging is derived as cNX, and the value for CS Mets at DX is assigned based on the values of CS Lymph Nodes Eval, CS Mets at DX, and CS Mets Eval as shown in the table CS Lymph Nodes, CS Mets at DX for this site.