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TNM and Stage Groupings > Carcinoma of the Lacrimal Gland
Carcinoma of the Lacrimal Gland
Primary Tumor (T)
| T Category |
Stage Category Definitions |
| TX |
Primary tumor cannot be assessed |
| T0 |
No evidence of primary tumor |
| T1 |
Tumor 2 cm or less in greatest dimension, with or without extraglandular
extension into the orbital soft tissue |
| T2 |
Tumor more than 2 cm but not more than 4 cm in greatest dimension* |
| T3 |
Tumor more than 4 cm in greatest dimension.* |
| T4 |
Tumor invades periosteum or orbital bone or adjacent structures |
| T4a |
Tumor invades periosteum |
| T4b |
Tumor invades orbital bone |
| T4c |
Tumor invades adjacent structures (brain, sinus, pterygoid fossa, temporal
fossa) |
*As the maximum size of the lacrimal gland is 2 cm, T2 and greater tumors will
usually extend into the orbital soft tissue.
Regional Lymph Nodes (N)
| N Category |
Stage Category Definitions |
| NX |
Regional lymph nodes cannot be assessed |
| N0 |
No regional lymph node metastasis |
| N1 |
Regional lymph node metastasis |
Distant Metastasis (M)
| M Category |
Stage Category Definitions |
| M1 |
Distant metastasis |
No distant metastasis (no pathologic M0; use clinical M to complete stage group)
Anatomic Stage/Prognostic Groups
| Stage |
T |
N |
M |
|
|
|
|
No stage grouping is presently recommended
