What Happens
Breast cancer occurs when cells in the breast grow
abnormally. As the breast cancer grows, it can spread to nearby tissues and
lymph
nodes
. Advanced breast cancer can affect the bones, liver, and brain.
Fortunately, when found at an early stage, breast cancer is highly curable.
Your doctor will learn more about how your breast cancer may behave
when the cancer cells are examined under the microscope. This is called
classification. It tells your doctor how rapidly the
cancer cells are growing and dividing and where they may have started in the
breast tissue.
Tests
for hormone receptors and other markers are also done. All of this
information will help you and your doctor make decisions about
treatment.
The
stage indicates how far the cancer has spread within
the breast, to nearby tissues, and to other organs. Your doctor will determine
the stage of your breast cancer by gathering information from other tests, such
as axillary lymph node surgery, blood tests,
bone scans, and
X-rays. The stage of your cancer is one of the most
important pieces of information that will help guide your treatment
options.