The TNM classification for staging of breast cancer is provided below. Table.
Find out about the TNM staging system for breast cancer and what it means.
NOTE: In January The American Joint Committee on Cancer (AJCC) updated their 8th Edition of the staging classifications for breast.
Primary Tumor (T). TX Primary tumor cannot be assessed. T0 No evidence of primary tumor. Tis Carcinoma in situ. Tis (DCIS) Ductal carcinoma in situ. Tis ( LCIS).