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Childhood Rhabdomyosarcoma Treatment (PDQ®)

  • Updated: 10/29/2014

Table 2. Soft Tissue Sarcoma Committee of the Children's Oncology Group: Pretreatment Staging System

Stage  Sites of Primary Tumor T Stage Tumor Size Regional Lymph Nodes Distant Metastasis 
N0 = absence of nodal spread; N1 = presence of regional nodal spread beyond the primary site; X = unknown N status; M0 = absence of metastatic spread; M1 = presence of metastatic spread beyond the primary site and regional lymph nodes; T1 = tumor confined to anatomic site of origin (noninvasive); T2a = tumor extension and/or fixation to surrounding tissue (invasive), tumor ≤5 cm in maximum diameter; T2b = tumor extension and/or fixation to surrounding tissue (invasive), tumor >5 cm in maximum diameter.
1Favorable sitesT1 or T2Any sizeN0 or N1 or NXM0
2Unfavorable sitesT1 or T2a, ≤ 5 cmN0 or NXM0
3Unfavorable sitesT1 or T2a, ≤ 5 cmN1M0
b, > 5 cmN0 or N1 or NX
4Any siteT1 or T2Any sizeN0 or N1 or NXM1