Table 21-5 Staging of Cancer -TNM classification Iggy – Flashcards
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Primary Tumor (T)
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Tx Tzero Tis T1, T2, T3, T4
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Tx
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primary tumor cannot be assessed
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Tzero
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no evidence of primary tumor
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Tis
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Carcinoma in Situ
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T1 T2 T3 T4
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Increasing size and/or local extent of the primary tumor
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Regional Lymph Nodes (N)
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Nx, Nzero, N1, N2, N3
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Nx
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regional lymph nodes cannot be assessed
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Nzero
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No regional lymph node metastasis
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N1, N2, N3
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Increasing involvement of regional lymph nodes
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Distant Metastasis (M)
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Mx, Mzero, M1
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Mx
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presence of distant metastasis cannot be assessed
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Mzero
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no distant metastasis
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M1
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Distant metastasis
