|
TX
|
Primary tumour cannot be assessed
| | | |
|
T0
|
No evidence of primary tumour
| | | |
|
T1
|
Tumour 8 cm or less in greatest dimension
| | | |
|
T2
|
Tumour more than 8 cm in greatest dimension
| | | |
|
T3
|
Discontinuous tumours in the primary bone site
| | | |
|
N - Regional lymph nodes
| | | | |
|
NX
|
Regional lymph nodes cannot be assessed
| | | |
|
N0
|
No regional lymph node metastasis
| | | |
|
N1
|
Regional lymph node metastasis
| | | |
|
M - Distant metastasis
| | | | |
|
MX
|
Distant metastasis cannot be assessed
| | | |
|
M0
|
No distant metastasis
| | | |
|
M1
|
Distant metastasis
| | | |
|
M1a
|
Lung
| | | |
|
M1b
|
Other distant sites
| | | |
|
G - Histologic grade
| | | | |
|
GX
|
Grade cannot be assessed
| | | |
|
G1
|
Well differentiated - low grade
| | | |
|
G2
|
Moderately differentiated - low grade
| | | |
|
G3
|
Poorly differentiated - high grade
| | | |
|
G4
|
Undifferentiated - high grade*
| | | |
|
Stage grouping
| | | | |
|
Stage
|
Tumour (T)
|
Node (N)
|
Metastasis (M)
|
Grade (G)
|
|
Stage IA
|
T1
|
NO
|
MO
|
G1, 2 low grade
|
|
Stage IB
|
T2
|
NO
|
MO
|
G1, 2 low grade
|
|
Stage IIA
|
T1
|
NO
|
MO
|
G3, 4 high grade
|
|
Stage IIB
|
T2
|
N0
|
MO
|
G3, 4 high grade
|
|
Stage III
|
T3
|
NO
|
MO
|
Any G
|
|
Stage IVA
|
Any T
|
NO
|
M1a
|
Any G
|
|
Stage IVB
|
Any T
|
N1
|
Any M
|
Any G
|
| |
Any T
|
Any N
|
M1b
|
Any G
|
