Breast Cancer

Breast Cancer
This illustration shows the stages of ductal breast cancer.

A Normal Duct

DCIS or Ductal Carcinoma in Situ
The cancer cells are contained within the duct.

Invasive Ductal Cancer
The cancer cells have spread through the duct wall into surrounding tissues.

Metastatic Breast Cancer
The cancer cells have spread to other organs of the body via the blood or lymphatic system.