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Breast Cancer Stages | |||||||||||||||
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Stage 0 This stage is used to describe non-invasive breast cancer. There is no evidence of cancer cells breaking through to or invading neighboring normal tissue. Stage IThis stage describes invasive breast cancer (cancer cells are breaking through to or invading neighboring normal tissue) in which
This stage describes invasive breast cancer in which:
Stage IIIStage III is divided into subcategories known as IIIA and IIIB. Stage IIIAThis stage describes invasive breast cancer in which:
Stage IIIBThis stage describes invasive breast cancer in which a tumor of any size has spread to the breast skin, chest wall, or internal mammary lymph nodes (located beneath the breast inside the chest)—and includes inflammatory breast cancer. Inflammatory Breast CancerInflammatory breast cancer is a very common here and very serious, aggressive type of breast cancer that is considered stage IIIB. The most distinguishing feature of inflammatory breast cancer is redness involving part or all of the breast. The redness feels warm. You may see puffiness of the breast's skin that looks like the peel of a navel orange ("peau d'orange"), or even ridges, welts, or hives. And part or all of the breast may be enlarged and hard. Inflammatory breast cancer is sometimes misdiagnosed as a simple infection. Stage IVThis stage includes invasive breast cancer in which a tumor has spread beyond the breast, underarm, and internal mammary lymph nodes. The tumor may have spread to the supraclavicular lymph nodes (nodes located at the base of the neck, above the collarbone), lungs, liver, bone, or brain. Additional stage information:You may also hear terms such as "early" or "earlier" stage, "later" or "advanced" stage breast cancer. Although these terms are not medically precise (they may be used differently by different doctors), here is a general idea of how they apply to the official staging system: Early Stage:Stage
0
Stage I Stage II Later Stage:(stage
II if there are many lymph nodes involved)
Stage III (IIIA, IIIB) Advanced Stage:Stage IV |
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