Sarcoma / 2010 / Article / Tab 2

Guidelines

Guidelines for the Management of Soft Tissue Sarcomas

Table 2

AJCC TNM Classification for STS [21].

ClassificationDescription

Primary Tumour (T)
TXPrimary tumour cannot be assessed
T0No evidence of primary tumour
T1Tumour ≤5 cm in greatest dimension
T1a Superficial tumour
T1b Deep tumour
T2Tumour >5 cm in greatest dimension
T2a Superficial tumour
T2b Deep tumour

Regional lymph nodes (N)
NXRegional lymph nodes cannot be assessed
N0No regional lymph node metastasis
N1Regional lymph node metastasis

Distant metastasis (M)
MXDistant metastasis cannot be assessed
M0No distant metastasis
M1Distant metastasis

Histologic grade (G)*
GXGrade cannot be assessed
G1Well-differentiated
G2Moderately differentiated
G3Poorly differentiated
G4Poorly differentiated or undifferentiated

Physical examination, diagnostic radiology and biopsy provide the AJCC criteria input data needed to stage STS.
*The AJCC system uses 4 histologic grades whilst the recommended UK system (FNCLCC) uses 3. The matching grades are G1 = low grade, G2 = intermediate grade and G3 and G4 = high grade.

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