Criteria
American Joint Committee on Cancer TNM staging system (version 9)[29]
The American Joint Committee on Cancer (AJCC) staging system describes the extent of disease based on the following anatomical factors:
Size and extent of the primary tumor (T)
Regional lymph node involvement (N)
Presence or absence of distant metastases (M).
Nonanatomical prognostic factors (e.g., tumor grade, biomarkers) may be used to supplement the staging of certain cancers.
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