Stage 3A Breast cancer means one of the following descriptions applies.
No actual tumor is associated with the cancerous cells or the tumor may be any size, AND the nearby lymph nodes (4 or more nodes with as many as 9 affected) contain cancer.
The tumor is larger than the approximate size of a small lime (more than 5 centimeters), AND small clusters of breast cancer cells are found in the lymph nodes between the approximate size of a pinprick and the width of a grain of rice. (.2mm - 2.0mm.)
The tumor is larger than the approximate size of a small lime (over 5 centimeters), AND the cancer has spread to 1, 2, or 3 lymph nodes under the arm or near the breastbone.