Mar 09, 2019 · Invasive ductal carcinoma (IDC) is the most common type of breast cancer. About 80% of all breast cancers are invasive ductal carcinomas. At first, invasive ductal carcinoma may not cause any symptoms. Often, an abnormal area turns up on a screening mammogram. Learn more about invasive ductal carcinoma. Invasive Ductal Carcinoma (IDC) and Ductal Carcinoma In Situ (DCIS) breast cancers are types that start in the milk ducts. Learn more about how they are diagnosed, the difference between the two Author: Hilary Parker.
Invasive ductal carcinoma (IDC), also known as infiltrating ductal carcinoma, is cancer that began growing in a milk duct and has invaded the fibrous or fatty tissue of the breast outside of the duct. IDC is the most common form of breast cancer, representing 80 percent of all breast cancer diagnoses. Ductal carcinoma in situ (DCIS) means the cells that line the milk ducts of the breast have become cancer, but they have not spread into surrounding breast tissue. DCIS is considered non-invasive or pre-invasive breast cancer. DCIS can’t spread outside the breast, but it still needs to be treated Last Revised: August 18, 2016.
Mar 09, 2019 · Ductal carcinoma in situ (DCIS) is non-invasive breast cancer. Ductal means that the cancer starts inside the milk ducts, carcinoma refers to any cancer that begins in the skin or other tissues (including breast tissue) that cover or line the internal organs, and in situ means "in its original place.". Invasive cancer cells can also spread to other parts of the body. It is also sometimes called infiltrative ductal carcinoma. IDC is the most common type of breast cancer, making up nearly 70- 80% of all breast cancer diagnoses. IDC is also the type of breast cancer that can most commonly affects men.