About Stage I Breast Cancer

Doctors usually think of cancer in terms of its level of invasiveness. Stage I breast cancer is the first of the invasive stages and is considered an early form of breast cancer. If you have stage I breast cancer, the tumor in your breast is less than two centimeters wide, has not spread to other organs, and cancer cells have not entered your lymph nodes. You can probably expect your treatment to include surgical removal of the tumor and the lymph nodes under your arm, followed by radiation therapy to the affected breast.