stage IIIA breast cancer
Stage IIIA breast cancer is defined by either of the following: (1) the cancer is smaller than 5 centimeters and has spread to the lymph nodes under the arm, which have grown into each other or into other structures and are attached to them; (2) the cancer is larger than 5 centimeters and has spread to the lymph nodes under the arm.
Read more about stages of breast cancer.
Audio contributed by: Marisa Weiss, M.D.
