Invasive ductal breast cancer

Invasive ductal breast cancer is the most common type of breast cancer in both women and men and accounts for about 75% of all breast cancers.

We use the term invasive ductal breast cancer although this type of breast cancer is also known as:

  • Invasive ductal breast cancer (IDC)
  • Invasive ductal carcinoma of the breast (IDC)
  • Invasive breast cancer of no special type (NST)
  • Breast cancer not otherwise specified (NOS).

It's sometimes referred to as ‘no special type’ or ‘not otherwise specified’ because the cells have no particular features that class them as a specific type of breast cancer when examined under the microscope.

Last reviewed: February 2016
Next planned review begins 2018

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