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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]
This is an accepted version of this page This is the latest accepted revision, reviewed on 2 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 ...
Estrogen receptors Progesterone receptors ERBB2 amplification Mutated TP53 [Notes 2] Tumorigenic in mice Reference External links 600MPE: Invasive ductal carcinoma + – – [3] Cellosaurus: AMJ13: Invasive ductal carcinoma: Primary: Yes: Yes: No--[4] Cellosaurus: AU565: Adenocarcinoma – – + – [3] Cellosaurus: BT-20: Invasive ductal ...
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 ...
Women in their 30s and 40s should be aware of the potential increased breast cancer risk associated with the ‘high-dose’ hormone IUD, and it’s important to include this knowledge in the ...
You can also expect luminal B cancer to be progesterone receptor-negative, meaning it won't respond very well to hormone therapy. "About 15-20% of breast cancers are luminal B tumors," according ...
It is immunologically typically triple-negative, with negative estrogen receptors (ER), negative progesterone receptors (PR), and negative HER2/neu receptors. [3] There are also medullary breast carcinomas that are found to be estrogen receptors (ER) and/or progesterone receptor (PR) positive, making diagnosis less straightforward.
Staging of breast cancer is one aspect of breast cancer classification that assists in making appropriate treatment choices, when considered along with other classification aspects such as estrogen receptor and progesterone receptor levels in the cancer tissue, the human epidermal growth factor receptor 2 status, menopausal status, and the ...
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