Breast cancer is classified into different types based on how the cells look under a microscope. Most breast cancers are carcinomas, a type of cancer that begins in the linings of most organs. Ductal carcinoma in situ DCIS is characterized by cancerous cells that are confined to the lining of the milk ducts and have not spread through the duct walls into surrounding breast tissue.
Invasive Lobular Carcinoma ILCalso known as infiltrating lobular carcinoma, is the second most common form of breast cancer diagnosed in the United States, representing percent of diagnosed invasive breast cancers. This type of cancer is more difficult to see on imaging because of the way the cells stream through the breast tissue. Invasive lobular carcinomas are usually larger than expected from the mammogram.
In order to understand breast cancer and how to treat it, it's important to understand how breasts work. Female breasts are supposed to produce milk. In order to do this, breasts are made up of lobules -- glands that produce milk -- and ducts which carry the milk from the lobule to the nipple when milk is being produced.
Invasive lobular carcinoma ILCsometimes called infiltrating lobular carcinoma, is the second most common type of breast cancer after invasive ductal carcinoma cancer that begins in the milk-carrying ducts and spreads beyond it. According to the American Cancer Society, more thanwomen in the United States find out they have invasive breast cancer each year. Lobular means that the cancer began in the milk-producing lobules, which empty out into the ducts that carry milk to the nipple.
All breast cancers initially form inside the milk duct near the area where the duct meets the milk gland, or lobule — a structure called the terminal duct lobular unit. As long as the abnormal cells remain inside the milk duct they are known as carcinoma in situ. When they break out of the milk duct and get into the fatty tissue of the breast, they become invasive breast cancers.
We recommend that you read it along with our booklet Understanding Cancer of the Breast, which you can download here pdf, 2. Breast tissue is made up of milk lobules and milk ducts where milk is made and carried to the nipple during breastfeeding. Invasive lobular breast cancer happens when cancer cells start to grow within the lobules and spread into the surrounding tissue.
Invasive lobular carcinoma is a type of breast cancer that begins in the milk-producing glands lobules of the breast. Invasive cancer means the cancer cells have broken out of the lobule where they began and have the potential to spread to the lymph nodes and other areas of the body. Invasive lobular carcinoma makes up a small portion of all breast cancers.
The first time Leigh Pate heard the term was when she got a phone call from her doctor following a series of diagnostic tests. By the end of her treatment and recovery, she not only knew what lobular breast cancer was, she was determined to shine a spotlight on this idiosyncratic subtype. But lobular presents differently, it behaves differently and it has different subtypes and variants.