staging for breast cancer

Release time ：Nov-10,2024

The staging of breast cancer is based on several factors including the tumor size, whether it has invaded surrounding tissues, the presence of lymph node metastasis, and whether there has been distant metastasis to other organs. Generally, breast cancer is classified from Stage 0 to Stage IV, with the severity of the disease increasing as the stage number rises.

Stage 0, also known as carcinoma in situ, indicates that the cancer cells are confined within the milk ducts and have not yet penetrated the duct walls. Stage I breast cancer is characterized by a tumor smaller than 2 centimeters in diameter without lymph node involvement. Stage II is split into two sub-stages: Stage IIA where the tumor is less than 2 centimeters in diameter with lymph node involvement, or between 2 to 5 centimeters without lymph node involvement; Stage IIB features a tumor larger than 5 centimeters without lymph node involvement, or between 2 to 5 centimeters with lymph node involvement. Stage III encompasses three sub-stages (IIIA, IIIB, IIIC) and is marked by larger tumors that may have invaded nearby tissues or have extensive lymph node involvement. Stage IV signifies that the cancer has spread to other parts of the body via the bloodstream or lymphatic system, such as the lungs, liver, bones, or brain.

Understanding one's breast cancer stage is crucial for patients as it influences the selection of treatment options and the prognosis. Upon diagnosis, it is imperative to seek medical care promptly and follow a standardized treatment plan under a physician's supervision. Additionally, maintaining a positive outlook, actively engaging in treatment, and adhering to regular check-ups are pivotal for enhancing survival rates.