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Breast cancer is a kind of cancer that begins as a growth of cells in the breast tissue. After skin cancer, breast cancer is the most common cancer diagnosed in women in the United States. But breast cancer doesn't just happen in women.
Breast cancer types include ductal carcinoma and lobular carcinoma. Learn about these and other types of breast cancer.
Breast cancer diagnosis often begins with an exam and a discussion of your symptoms. Imaging tests can look at the breast tissue for anything that's not typical. To confirm whether there is cancer or not, a sample of tissue is removed from the breast for testing.
Inflammatory breast cancer is a form of breast cancer that causes breast swelling and skin changes. Inflammatory breast cancer happens when a growth of cells forms in the breast tissue. The cells break away from where they started to grow and travel to the lymphatic vessels in the skin.
In ductal carcinoma in situ, the cancer cells are confined inside a milk duct in the breast. The cancer cells haven't spread into the breast tissue. Ductal carcinoma in situ is often shortened to DCIS. It's sometimes called noninvasive, preinvasive or stage 0 breast cancer.
It's not clear what causes male breast cancer. Male breast cancer starts when cells in the breast tissue develop changes in their DNA. A cell's DNA holds the instructions that tell the cell what to do. In healthy cells, the DNA gives instructions to grow and multiply at a set rate.
Most times, breast pain signals a noncancerous (benign) breast condition and rarely indicates breast cancer. Unexplained breast pain that doesn't go away after one or two menstrual cycles, or that persists after menopause, or breast pain that doesn't seem to be related to hormone changes needs to be evaluated.
Breast cancer prevention starts with healthy habits — such as limiting alcohol and staying physically active. Learn what you can do to lower your breast cancer risk. By Mayo Clinic Staff. If you're concerned about getting breast cancer, you might wonder what you can do to help prevent it.
At first, invasive lobular carcinoma may cause no signs and symptoms. As it grows larger, invasive lobular carcinoma may cause: A change in the texture or appearance of the skin over the breast, such as dimpling or thickening. A new area of fullness or swelling in the breast. A newly inverted nipple.
Breast cancer. A breast lump that's painless, hard, has irregular edges and is different from the breast tissue around it might be breast cancer. The skin covering the lump may thicken, change color or look red. There also may be skin changes such as dimpled or pitted areas that look like the skin of an orange.