What Is Breast Cancer ?

What Is Breast Cancer?
Most kinds of cancer are named after the part of the body where the cancer first starts.
Breast cancer begins in the breast tissue.
Inside the breasts are glands that produce and release milk after a woman has a baby.
The glands that make the milk are called lobules and the tubes that connect them to the nipple are called ducts.
The breast itself is made up of lobules, ducts, and fatty, connective, and lymphatic tissue.
Lymph is a clear fluid that contains immune system cells and tissue waste products.
The fluid is carried in lymph vessels that lead to small, pea-sized collections of tissue called lymph nodes.
Most lymphatic vessels of the breast lead to lymph nodes under the arm. They are called axillary's nodes.