Stage IIIB also includes inflammatory breast cancer, an uncommon but aggressive type of breast cancer.
CNN: Breast cancer staging
2.
Stage III breast cancers are subdivided into three categories IIIA, IIIB and IIIC based on a number of criteria.
CNN: Breast cancer staging
3.
In stage IIIB breast cancer, a tumor of any size has spread to tissues near the breast the skin and chest muscles and may have spread to lymph nodes within the breast or under the arm.