CS Tumor Size 
CS Extension 
CS Tumor Size/Ext Eval 
CS Lymph Nodes 
CS Lymph Nodes Eval 
Regional Nodes Positive 
Regional Nodes Examined 
CS Mets at DX 
CS Mets Eval 
CS Site-Specific Factor 1 OBSOLETE - Carcinoembryonic Antigen (CEA) 
CS Site-Specific Factor 2 OBSOLETE - Clinical Assessment of Regional Lymph Nodes 
CS Site-Specific Factor 3 = 988 
CS Site-Specific Factor 4 = 988 
CS Site-Specific Factor 5 = 988 
CS Site-Specific Factor 6 = 988 
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CS Site-Specific Factor 7 = 988 
CS Site-Specific Factor 8 = 988 
CS Site-Specific Factor 9 = 988 
CS Site-Specific Factor 10 = 988 
CS Site-Specific Factor 11 Mitotic Count 
CS Site-Specific Factor 12 KIT Gene Immunohistochemistry (IHC) 
CS Site-Specific Factor 13 KIT Gene Mutations 
CS Site-Specific Factor 14 PDGFRA Gene Mutation 
CS Site-Specific Factor 15 Tumor Multiplicity 
CS Site-Specific Factor 16 = 988 
CS Site-Specific Factor 17 = 988 
CS Site-Specific Factor 18 = 988 
CS Site-Specific Factor 19 = 988 
CS Site-Specific Factor 20 = 988 
CS Site-Specific Factor 21 = 988 
CS Site-Specific Factor 22 = 988 
CS Site-Specific Factor 23 = 988 
CS Site-Specific Factor 24 = 988 
CS Site-Specific Factor 25 = 988 
Histology Inclusion Table AJCC 7th ed. 
Histology Exclusion Table AJCC 6th ed. = NA 
AJCC TNM 7 Stage - GIST Small Intestine 
AJCC TNM 6 Stage = NA 
Summary Stage 
Extension Size AJCC 7 Table 
Mitotic Rate Calculation Table 
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