| CLIN |
PATH |
DEFINITIONS |
| |
|
PRIMARY TUMOR (T) |
|
|
|
TX |
Primary tumor cannot be assessed |
|
|
|
T0 |
No evidence of primary tumor |
|
|
|
T1 |
Tumor 15 mm or less in greatest dimension |
|
|
|
T2 |
Tumor more than 15 mm in greatest dimension |
|
|
|
T3 |
Tumor of any size with diffuse invasion of orbital tissues and/or bony walls |
|
|
|
T4 |
Tumor invades beyond the orbit to adjacent sinuses and/or to cranium |
| |
|
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 |
Distast metastasis |