About 226,870 new cases of invasive breast cancer in American women will be diagnosed in 2012, while more than 22,000 Canadian women will be diagnosed with breast cancer over that same time period.
The National Breast Cancer Foundation lists seven different types of breast cancer. Here's a look at them.
Ductal carcinoma in-situ (DCIS): This is an early form of breast cancer that refers to the presence of abnormal cells inside a milk duct in the breast. This type of cancer is generally found during
Infiltrating ductal carcinoma (IDC): Also known as invasive ductal carcinoma, this is the most common type of breast cancer. According to BreastCancer.org, roughly 80 percent of all breast cancer cases are IDC. This cancer starts in the ducts, but "infiltrating" means that it spreads to the surrounding breast tissue. Over time, IDC can spread to the
Medullary carcinoma: This is a less common form of breast cancer. It is a type of IDC, but it gets its name from the color of the tumors, which are close to the color of brain tissue, or medulla. Medullary carcinoma is quite visible during mammograms because the cancer cells are large and form a barrier between healthy tissue and tumors.
Infiltrating lobular carcinoma (ILC): The
Tubular carcinoma: This is a common cancer for women ages 50 and older. When viewed under the microscope, tubular carcinoma cells have a distinctive tubular structure. There is a 95 percent survival rate for tubular carcinoma.
Mucinous carcinoma (Colloid): This is a rare condition in which the breast cancer cells within the breast produce mucus. The mucus and the cancer cells join together to form a jelly-like tumor. The tumors may feel like bumpy water balloons, but some are too small to detect with the fingers.
Inflammatory breast cancer (IBC): This is a rare and very aggressive type of breast cancer that causes the lymph vessels in the skin around the breast to become blocked. The cancer gets its name from the appearance of a swollen, red and inflamed breast.