Ewing's sarcoma staging

Ewing's sarcoma Microchapters
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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.

Ewing's sarcoma staging

Primary tumor (T)
Stage	Finding
Regional lymph nodes (N)
Stage	Finding
Nx	cannot be assessed
N0	No regional lymph node metastasis
N1	No regional lymph node metastasis
Distant metastasis (M)
Stage	Finding
M0	No distant metastasis
M1	Distant metastasis
M1a	Distant metastasis to lung
M1b	Distant metastasis to bone or other distant sites
Histologic grade (G)
Stage	Finding
Gx	cannot be assessed
G1	Low grade
G2	High grade (moderately differentiated)
G3	High grade (poorly differentiated)

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