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Staging and Grading Systems for Childhood Soft Tissue Sarcoma

    Table 3. Primary Tumor (T)a

    a Reprinted with permission from AJCC: Soft tissue sarcoma. In: Edge SB, Byrd DR, Compton CC, et al., eds.: AJCC Cancer Staging Manual. 7th ed. New York, NY: Springer, 2010, pp 291-8.
    b Superficial tumor is located exclusively above the superficial fascia without invasion of the fascia; deep tumor is located either exclusively beneath the superficial fascia, superficial to the fascia with invasion of or through the fascia, or both superficial yet beneath the fascia.
    TXPrimary tumor cannot be assessed.
    T0No evidence of primary tumor.
    T1Tumor ≤5 cm in greatest dimension.b
    T1aSuperficial tumor.
    T1bDeep tumor.
    T2Tumor >5 cm in greatest dimension.b
    T2aSuperficial tumor.
    T2bDeep tumor.

    Table 4. Regional Lymph Nodes (N)a

    a Reprinted with permission from AJCC: Soft tissue sarcoma. In: Edge SB, Byrd DR, Compton CC, et al., eds.: AJCC Cancer Staging Manual. 7th ed. New York, NY: Springer, 2010, pp 291-8.
    b Presence of positive nodes (N1) in M0 tumors is considered Stage III.
    NXRegional lymph nodes cannot be assessed.
    N0No regional lymph node metastasis.
    N1bRegional lymph node metastasis.

    Table 5. Distant Metastasis (M)a

    a Reprinted with permission from AJCC: Soft tissue sarcoma. In: Edge SB, Byrd DR, Compton CC, et al., eds.: AJCC Cancer Staging Manual. 7th ed. New York, NY: Springer, 2010, pp 291-8.
    M0No distant metastasis.
    M1Distant metastasis.

    Table 6. Anatomic Stage/Prognostic Groupsa

    StageTNMGrade
    a Reprinted with permission from AJCC: Soft tissue sarcoma. In: Edge SB, Byrd DR, Compton CC, et al., eds.: AJCC Cancer Staging Manual. 7th ed. New York, NY: Springer, 2010, pp 291-8.
    IAT1aN0M0G1, GX
    T1bN0M0G1, GX
    IBT2aN0M0G1, GX
    T2bN0M0G1, GX
    IIAT1aN0M0G2, G3
    T1bN0M0G2, G3
    IIBT2aN0M0G2
    T2bN0M0G2
    IIIT2a, T2bN0M0G3
    Any TN1M0Any G
    IVAny TAny NM1Any G

    Soft Tissue Sarcoma Tumor Pathological Grading System

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