Written by : Dr.M.D.Mazumdar, MD
Invasive ductal carcinoma (IDC), also called infiltrating ductal carcinoma, is the most common type of breast cancer, constituting about 80% of all diagnosed breast cancers.
The breast is an organ designed to manufacture and deliver milk to the infant. The majority of the breast is composed of fatty tissue. Milk glands lie within this fatty tissue and are connected to the nipple via a series of ducts.
Invasive means that the cancer which had originally started in the ducts of the breast (Ductal Cancer in Situ or DCIS) has broken through the membrane of the ducts and invaded the surrounding tissue.
Once the cancer cells have broken through the duct membrane, they can invade the lymphatic and blood systems and spread further to other parts of the body. This is known as metastasis.
Age - Invasive ductal breast cancer usually occurs in women who are over the age of 55 years. It is basically a postmenopausal condition. It can also occur in older men - that is, men who have crossed 50 years of age. IDC is the commonest type of breast cancer in men.
Symptoms of Ductal Breast Cancer
Symptoms of Invasive Ductal Carcinoma (IDC):
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Symptoms of IDC
Stages of IDC