There are many types of breast cancers are. They are often classified based on certain factors. The most common type is breast cancer is adenocarcinoma of the breast, which is a type of cancer that affects the lobules (milk-producing gland of the breast) or the milk ducts. Breast cancers are also classified as invasive and non-invasive: Invasive breast cancer occurs when the cancerous cell breaks through the breast tissue and spread through the body. E.g., Invasive ductal carcinoma. Non-invasive breast cancers are cancer that is localized to the breast and do not spread—E.g.
Ductal carcinoma in situ. Breast cancers are also classified based on genes: most breast cancers are estrogen positive; others are HER-2 positive and triple-negative. The most aggressive form is the triple-negative Other types of breast cancers include Phyllodes tumor, Paget disease of the breast, angiosarcoma, adenocystic carcinoma, and inflammatory breast cancer.
Breast cancer means that the abnormal cells that have started out in the body started growing abnormally in the breast. The types of breast cancer are the following: metastatic breast cancer, inflammatory breast cancer, and invasive ductal carcinoma. If a woman has already been diagnosed with Metastatic breast cancer, this already means Stage 4 breast cancer.
Cancer has spread to various parts of the body, and it will be harder to come up with proper treatments that can hopefully improve the person’s condition. There are also some types of breast cancer that are considered to be more aggressive and harder to treat than others.