| IDC - Invasive Ductal Carcinoma Invasive ductal carcinoma, or IDC, accounts for about 80% of all breast cancers. Invasive means that it has "invaded" or spread to the surrounding tissues. http://www.breastcancer.org |
| Types of breast cancer - MayoClinic.com Invasive ductal carcinoma (IDC). IDC accounts for the majority of invasive breast cancers. If you have IDC, cancer cells form in the lining of your milk ducts. http://www.mayoclinic.com |