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.