Breast Cancer Stage 3A Any one of the following qualifies:
- No tumor is found in the breast, but cancer is found in the lymph nodes under the arm, which are attached to each other or to other structures
- Breast tumor is no larger than 5 centimeters and is found in the lymph nodes under the arm, which are attached to each other or to other structures
- Breast tumor is larger than 5 centimeters and is found in the lymph nodes under the arm, which are attached to each other or to other structures
