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Breast cancer cells typically form a tumor, which can be seen on X-rays or felt as a lump. Breast cancer affects almost exclusively women, although it can also affect men. It's critical to remember that the majority of breast lumps are benign and not cancerous (malignant). Breast tumors that aren't cancerous are abnormal growths that don't spread outside of the breast. Although benign breast lumps are not life-threatening, they can raise a woman's risk of developing breast cancer. Any lump or change in your breast should be evaluated by a healthcare specialist to see if it's benign or malignant (cancer) and if it'll alter your cancer risk in the future.
Breast cancer comes in numerous forms, the most frequent of which are ductal carcinoma in situ (DCIS) and invasive carcinoma. Others, such as phyllodes tumors and angiosarcoma, are rare.
Breast cancer cells are examined for proteins termed estrogen receptors, progesterone receptors, and HER2 after a biopsy. In the lab, the tumor cells are also examined closely to determine the grade. Treatment options can be influenced by the specific proteins discovered and the tumor grade.
When cancer cells enter the blood or lymph system and are transferred to other parts of the body, breast cancer can spread.
The lymph system is a network of lymph (or lymphatic) tubes that connect lymph nodes throughout the body (small bean-shaped collections of immune system cells).
Lymph is a transparent fluid that contains tissue by-products and waste material, as well as immune system cells, inside lymph vessels. Lymph fluid is carried away from the breast by lymph veins. Cancer cells can enter those lymph veins and begin to proliferate in lymph nodes in the case of breast cancer. The majority of the breast lymph veins flow into:
If cancer cells have spread to your lymph nodes, there's a good probability they've gone through your lymph system and spread to other places of your body (metastasized). The more lymph nodes that contain breast cancer cells, the more probable the disease may spread to other organs. As a result, detecting cancer in one or more lymph nodes can have a significant impact on your treatment approach. To find out if the cancer has spread, you'll usually need surgery to remove one or more lymph nodes.
Despite this, not all women with cancer cells in their lymph nodes get metastases, and some women who do not have cancer cells in their lymph nodes develop metastases later.
Breast self-examination, or routinely inspecting your breasts on your own, can be a valuable tool for detecting breast cancer early, when it is more likely to be effectively treated. While no single test will detect all breast cancers early, Breastcancer.org believes that breast self-examination along with other screening procedures can improve the chances of early diagnosis.
Please notify your doctor if you notice any of the following changes:
Here are some things to watch for:
The following are some of the signs and symptoms of breast cancer: