HER2-positive (HER2+) breast cancer is a subtype of breast cancer characterized by the overexpression of the HER2 protein, which helps control how cancer cells grow and divide. Here are some key points about HER2-positive breast cancer:

- Prevalence: Up to 20% of people with breast cancer have HER2-positive tumors
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HER2-positive (HER2+) breast cancer is a subtype of breast cancer characterized by the overexpression of the HER2 protein, which helps control how cancer cells grow and divide. Here are some key points about HER2-positive breast cancer:

- Prevalence: Up to 20% of people with breast cancer have HER2-positive tumors.
- Aggressiveness: HER2-positive breast cancers are aggressive, fast-growing, and more likely to recur.
- Diagnosis: Diagnosis often involves tests like fluorescence in situ hybridization (FISH) and immunohistochemistry (IHC) to determine HER2 status.
- Symptoms: Early symptoms can include a new lump in the breast, but other symptoms may also be present.
- Treatment: Treatments often include surgery, radiation, and medications that target the HER2 protein. Immunotherapy is also a common approach.

For more detailed information, you can refer to the resources provided in the knowledge base.

 This AI-generated response comes from MyBCTeam and other selected sources. It is not a substitute for medical advice. Always ask your doctor about specific health concerns.

6 HER2-Positive Breast Cancer Early Symptoms To Watch For | MyBCTeam

HER2-Positive Breast Cancer Prognosis and Life Expectancy | MyBCTeam