Collaborative Stage Data Set - Revised 05/31/2011 FINAL

Brain

CS Mets at DX

Note 1: According to AJCC, p. 594: "Tumors affecting the central nervous system rarely develop extraneural metastases, probably because of inherent biologic characteristics of these tumors, and also because the brain does not have a well-developed drainage system. . . . Certain tumors do spread through cerebrospinal fluid (CSF) pathways, and such spread has a major impact on survival."

Code	Description	TNM 7 Map	TNM 6 Map	SS77 Map	SS2000 Map
00	No distant metastasis	NA	NA	NONE	NONE
10	OBSOLETE DATA RETAINED AND REVIEWED V0203 See codes 20, 30, and 50 Distant metastases	NA	NA	D	D
20	Metastasis within CNS and CSF pathways "Drop" metastasis	NA	NA	D	D
30	Metastasis outside the CNS Extra-neural metastasis	NA	NA	D	D
50	30 + 20 Metastasis within and outside CNS	NA	NA	D	D
85	OBSOLETE DATA CONVERTED V0203 See code 20 "Drop" metastases	ERROR	ERROR	ERROR	ERROR
99	Unknown; distant metastasis not stated Distant metastasis cannot be assessed Not documented in patient record	NA	NA	U	U