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Triple-negative breast cancer (TNBC) is any breast cancer that either lacks or shows low levels of estrogen receptor (ER), progesterone receptor (PR) and human epidermal growth factor receptor 2 (HER2) overexpression and/or gene amplification (i.e. the tumor is negative on all three tests giving the name triple-negative). [1]
Women diagnosed with higher risk DCIS—estrogen-negative DCIS, for example, or the kind that presents as a lump in the breast—were not included in the trial since they are not ideal candidates ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 14 January 2025. Cancer that originates in mammary glands Medical condition Breast cancer An illustration of breast cancer Specialty Surgical Oncology Symptoms A lump in a breast, a change in breast shape, dimpling of the skin, fluid from the nipple, a newly inverted nipple, a red scaly patch of skin on ...
Staging breast cancer is the initial step to help physicians determine the most appropriate course of treatment. As of 2016, guidelines incorporated biologic factors, such as tumor grade, cellular proliferation rate, estrogen and progesterone receptor expression, human epidermal growth factor 2 (HER2) expression, and gene expression profiling into the staging system.
TNBC is hard to treat because, unlike many other breast cancers, the tumor cells do not have estrogen or progesterone receptors, and do not make a protein called HER2. They, therefore, do not ...
HER/neu-negative PACB is one of the triple-negative breast cancers (TNBCs). TNBCs are a group of estrogen receptor-, androgen receptor-, and HER2/neu-negative tumors that account for 10%-15% of all breast cancers and are particularly aggressive cancers that generally have a poorer prognosis than other breast cancer subtypes. [18]
Estrogen deprivation therapy, also known as endocrine therapy, is a form of hormone therapy that is used in the treatment of breast cancer.Modalities include antiestrogens or estrogen blockers such as selective estrogen receptor modulators (SERMs) like tamoxifen, selective estrogen receptor degraders like fulvestrant, and aromatase inhibitors like anastrozole and ovariectomy.
The factors included here tend to be generalizable to most breast cancers, and further information can be found in the main articles on breast cancer and breast cancer screening. The prognosis of ductal carcinomas in general depend, in part, on its histological subtype. Mucinous, papillary, cribriform, and tubular carcinomas have longer ...
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