Everything About Breast Cancer

Stages 1 and 2

If the tumor is 2 centimeters or smaller, it is a Stage I breast cancer. At this stage, the tumor has not yet spread outside the breast.

For stage II, there are two sub-stages: Stage IIA and Stage IIB. Under stage IIA, there are three cases: either no tumor is found but cancer is present in the lymph nodes under the arm (also called axillary lymph nodes); or the tumor is 2 centimeters or smaller in size, but has already spread to the axillary lymph nodes; or the tumor is between 2 to 5 centimeters but has not yet spread.

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