Breast cancer is abnormal and disordered growth of cells in this tissue. The breast consists of a series of mammary glands that produce milk after birth, and which are called lobes and lobules.
The lobes are connected by pipes, ducts, which are the leading milk to the nipple during lactation, to feed the baby.
The glands (or lobes) and the ducts are embedded in adipose tissue and connective tissue, which, together with the lymphoid tissue, forming the breast.