What is Invasive Ductal Carcinoma?

Invasive ductal carcinoma (IDC) is a type of breast cancer. IDC starts within the ducts of the breasts, but will spread to, or "invade," other breast tissue.

Statistics for Invasive Ductal Carcinoma (IDC)

According to the American Cancer Society, IDC is the most common type of breast cancer accounting for nearly 80% of new invasive breast cancer cases.

Symptoms of IDC

IDC may be discovered on a mammogram before presenting any symptoms. However, some women may have symptoms including:

  • Changes in the breast shape
  • Breast or nipple pain
  • Discharge from the nipple
  • Swelling of the breast
  • A lump
  • Thickening of the nipple skin

Other Names for IDC

Invasive breast cancer, ductal carcinoma, infiltrating breast cancer, infiltrating ductal carcinoma