Breast Cancer 7 Stages, OmniMedicalSearch.com

Conditions & Diseases: Cancer

Breast Cancer

Breast Cancer Stages

The American Joint Committee on Cancer classifies breast cancer in 7 major stages:

Stage 0: Cancer cells are in their original location within normal breast tissue.

Stage I: Tumor does not have a diameter wider than 2 cm and it did not spread beyond the breast.

Stage IIA: Tumor has a 2 to 5 cm diameter that did not spread to axillary (armpit area) lymph nodes or the tumor has a 2 cm size and it spread to axillary lymph nodes.

Stage IIB: Tumor is 5 cm in size but did not spread to axillary lymph nodes or the tumor is 2 to 5 cm size and spread to the axillary lymph nodes.

Stage IIIA: Tumor is smaller than 5 cm, but spreads to axillary lymph nodes connected to other nodes or to other structures or tumor is larger than 5 cm and it spreads to the axillary lymph nodes.

Stage IIIB: Tumor extended over the breast tissue to the skin of the breast or the chest walls, or it spreads to the lymphatic nodes located on the chest walls along the sternum.

Stage IV: Tumor can have any size that spreads beyond the breast region and chest wall affecting the lungs, bones, or liver.

Article by Alina Morrow, MS
Medical Writer
OmniMedicalSearch.com

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Page Last Modified:
10/10/2010