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AJCC Stage Group
Cancer patients with similar prognoses are grouped by using prognostic stage group tables. Clinical and pathological stage groups are defined for each case as appropriate. These disease-specific groups are composed of the following categories: • cT, cN, and cM or pM • pT, pN, and cM or pM • factors for both groups, if applicable Rules for assigning prognostic stage groups: Prognostic stage groups are based on combinations of T, N, M, and relevant prognostic factors and usually define groups of patients with similar outcomes to help define prognosis and appropriate treatment, as well as to enable comparisons of similar groups of patients between institutions and over time.


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