What are the different types of Breast Cancer?

Most Common Types of Breast Cancer:

DCIS: Ductal Carcinoma In Situ: Begins in duct of the breast and does not invade surrounding tissue.  This is a noninvasive breast cancer and does not spread to other locations in the body. Most common type of noninvasive breast cancer.

IDC:  Invasive Ductal Carcinoma: Begins in the duct of the breast but breaks through the cell wall to invade surrounding tissue.  Has the ability to   spread to other locations in the body.  Most common type of invasive breast cancer.

LCIS: Lobular Carcinoma In Situ: Begins in the lobe of the breast and does not invade surrounding tissue . Thought of as a "marker" for high risk rather than a breast cancer.

ILC: Invasive Lobular Carcinoma:  Begins in the lobe of the breast but breaks throught the cell wall to invade surrounding tissue.  Has the ability to spread to other locations in the body.