Describe breast cancer staging according tnm?

Tumor,Nodes,Mets: The t, n, m system classifies breast cancers based upon tumor size(t), lymph node status(n), and presence of cancer elsewhere in the body(m). Stage i is limited to small cancers +/- microscopic ln disease. Stage ii describes tumors 2-5cm +/- ln disease. Stage iii is for more advanced tumors (>5cm, skin/chest wall involvement) +/- multiple/distant ln. Stage IV describes metastatic disease.

Staging breast ca: Open this link for detail and nice description of breast cancer staging. Also, you will find a lot of useful information about breast cancer. http://cancer.gov/cancertopics/wyntk/breast/page7.