Breast cancer (breast) stage II. Definition

Medical Definition: Breast cancer (breast) stage II

Stage II is divided into stage IIA and stage IIB. In stage IIA, (1) no tumor is found in the breast, but cancer is found in lymph nodes in the armpit (lymph nodes under the arm), or (2) the tumor is 2 centimeters or smaller and has spread to lymph nodes in the armpit, or (3) the tumor is larger than 2 centimeters but not larger than 5 centimeters and has not spread to lymph nodes in the armpit. In stage IIB, the tumor can be measured (1) more than 2 centimeters but not larger than 5 centimeters and has spread to lymph nodes under the arm or (2) more than 5 centimeters but has not spread to lymph nodes in the armpit.

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