What is the common name for the breast cancer?

Ductal: Ductal carcinoma is most common breast cancer.

Infiltrating ____Ca: Breast cancer is commonly named after the cell of origin within the breast. Cancers that have the potential to spread elsewhere are called invasive or infiltrating cancers (in contrast to in situ cancers). Most cancers arise in the milk ducts (infiltrating ductal cancer); the second-most common arise in the milk-producing lobules (infiltrating lobular cancer).