| TMN
Universal Classification for Breast Cancer |
| Primary
Tumor |
| T0 |
No evidence of tumor |
| Tis |
Carcinoma in situ or Paget's Disease |
| T1 |
Tumor of 2cm or less (greatest dimension) |
| T2 |
Tumor between 2 cm and 5 cm in size |
| T3 |
Tumor more than 5 cm in size |
| T4 |
Tumor of any size with extension to chest
wall or skin (peau d'orange, edema, ulceration,
inflammatory carcinoma |
| Regional
Lymph Nodes |
| N0 |
No regional lymph node metastasis |
| N1 |
Metastasis to movable ipsilateral axillary
lymph nodes |
| N2 |
Metastasis to ipsilateral lymph nodes fixed
to one another or to other structures |
| N3 |
Metastasis to ipsilateralmammry lymph nodes
or ipsilateral supraclavicular lymph nodes |
| Distant
Metastases |
| M0 |
No distant metastasis |
| M1 |
Distant Metastasis |
| From
the American Joint Commission on Cancer and the
International Union Against Cancer |
