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Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.

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Ewing's sarcoma staging

Introduction

Overview

Overview

AJCC staging system is used for staging of Ewing’s sarcoma.

Ewing’s sarcoma staging

Ewing’s sarcoma staging

  • Ewing sarcoma is classified accordig to AJCC staging system shown in table below.[1]
Primary tumor (T)
Stage Finding
Spine Pelvis Appendicular skeleton, trunk, skull, and facial bones
Tx
  • Cannot be assessed
  • Cannot be assessed
  • Cannot be assessed
T0
  • No evidence of primary tumor
  • No evidence of primary tumor
  • No evidence of primary tumor
T1
  • Confined to one pelvic segment with no extraosseous extension
  • Tumor ≤8 cm in greatest dimension
T2
  • Confined to three adjacent vertebral segments
  • Confined to one pelvic segment with extraosseous extension or two segments without extraosseous extension
  • Tumor >8 cm in greatest dimension
      T3
      • Confined to four or more adjacent vertebral segments, or any nonadjacent vertebral segments
      • Spanning two pelvic segments with extraosseous extension
          T4 _
          Regional lymph nodes (N)
          Stage Finding
          Nx
          • cannot be assessed
            N0
              N1
              Distant metastasis (M)
              Stage Finding
              M0
              M1
              M1a
              M1b
                  Histologic grade (G)
                  Stage Finding
                  Gx
                  • cannot be assessed
                    G1
                    • Low grade
                    G2
                    • High grade (moderately differentiated)
                      G3
                      • High grade (poorly differentiated)
                      G4
                      • Undifferentiated
                      Anatomic Stage/Prognostic Groups
                      Stage T N M G
                      Ewing’s Sarcoma
                      IA T1 N0 M0 G1,2, GX
                      IB T2 N0 M0 G1,2, GX
                      T3 N0 M0 G1,2, Gx
                      IIA T1 N0 M0 G3,4
                      IIB T2 N0 M0 G3, 4
                      III T3 N0 M0 G3,4
                      IVA Any T N0 M1a Any G
                      IVB Any T Any N Any M Any G
                      N1 M1b Any G
                      References

                      References

                      1. ↑ Edge, Stephen (2010). AJCC cancer staging manual. New York: Springer. ISBN 978-0-387-88440-0.


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                      Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1];Associate Editor(s)-in-Chief: Suveenkrishna Pothuru, M.B,B.S. [2];Assistant Editor(s)-In-Chief: Michael Maddaleni, B.S.