What are the 4 stages of breast cancer?
- T1mi: The tumor is the size of 1 mm or smaller.
- T1a: The tumor’s size is between 1 and 5 mm.
- T1b: The tumor size is between 5 and 10 mm.
- T1c: The tumor size is between 10 and 20 mm.
What is the most serious stage of breast cancer? Stage IV is the most advanced stage of breast cancer. It has spread to nearby lymph nodes and to distant parts of the body beyond the breast. This means it possibly involves your organs — such as the lungs, liver, or brain — or your bones.
What is T1 and T2 in breast cancer? T1 (includes T1a, T1b, and T1c): Tumor is 2 cm (3/4 of an inch) or less across. T2: Tumor is more than 2 cm but not more than 5 cm (2 inches) across. T3: Tumor is more than 5 cm across. T4 (includes T4a, T4b, T4c, and T4d): Tumor of any size growing into the chest wall or skin.
What is the difference between grading and staging of breast cancer? Staging means how big the cancer is and whether it has spread. Grading means how abnormal the cancer cells look under a microscope. Doctors use the stage and grade of a cancer to help them decide which treatment you need. There are different systems used in the UK to stage breast cancer.