| CLIN |
PATH |
DEFINITIONS |
| |
|
PRIMARY
TUMOR (T) |
|
|
|
TX |
Primary tumor cannot be
assessed |
|
|
|
T0 |
No evidence of primary
tumor |
|
|
|
T1 |
Single tumor 5 cm or less
in greatest dimension |
|
|
|
T2 |
Single tumor more than 5 cm
but not more than 10 cm in greatest dimension |
|
|
|
T3 |
Single tumor more than 10
cm in greatest dimension |
|
|
|
T4 |
Multicentric tumors
occurring simultaneously |
| |
|
LYMPH
NODE (N) |
|
|
|
NX |
Regional lymph nodes cannot
be assessed |
|
|
|
N0 |
No regional lymph node
metastasis |
|
|
|
N1 |
Regional lymph node
metastasis |
| |
|
DISTANT
METASTASIS (M) |
|
|
|
MX |
Presence of distant
metastasis cannot be assessed |
|
|
|
M0 |
No distant metastasis |
|
|
|
M1 |
Distant metastasis |
| |
|
PRIMARY
TUMOR (PT) |
|
|
|
pTX |
Primary tumor cannot be
assessed |
|
|
|
pT0 |
No evidence of primary
tumor |
|
|
|
pT1 |
Excision of tumor complete
and margins histologically free |
|
|
|
pT2 |
The category does not apply
to neuroblastoma |
|
|
|
pT3 |
Residual tumor |
|
|
|
pT3a |
|
Microscopic residual tumor |
|
|
|
pT3b |
|
Macroscopic residual tumor
or grossly incomplete excision |
|
|
|
pT3c |
|
Surgical exploration, tumor
not resected |
|
|
|
pT4 |
Multicentric tumors |
| |
|
LYMPH
NODE (PN) |
|
|
|
pNX |
Regional lymph nodes cannot
be assessed |
|
|
|
pN0 |
No regional lymph node
metastasis |
|
|
|
pN1 |
Regional lymph node
metastasis |
|
|
|
|
pN1a |
Regional lymph node
metastasis completely resected |
|
|
|
|
PN1b |
Regional lymph node
metastasis incompletely resected |
| |
|
DISTANT
METASTASIS (PM) |
|
|
|
pMX |
Presence of distant
metastasis cannot be assessed |
|
|
|
pM0 |
No distant metastasis |
|
|
|
pM1 |
Distant metastasis |