Types Of Breast Cancer

30 Nov, 2021

Dr. Rajesh Bollam

Breast cancers share one main thing in common they all begin in the breast. Most breast cancers start in the ducts that carry milk to the nipple, or in the “lobules,” where breast milk is made. However, there are many different types of breast cancer.

Breast cancer types are separated into two main groups: invasive or in situ (non-invasive). All kinds of breast cancer fall under one of these categories.

(non-invasive): When breast cancer is not invasive, it is most likely ductal carcinoma in situ (DCIS), a non-invasive type of breast cancer that starts in a milk duct and has not yet spread anywhere else. DCIS accounts for approximately 1 in 5 new cases of breast cancer. DCIS is also called stage 0 breast cancer, and most women have a positive prognosis at this stage. However, DCIS can progress and spread beyond the milk ducts, becoming invasive cancer.

Invasive: Invasive breast cancer refers to any breast cancer that spreads from the original site and “invades” other areas, like nearby breast tissue, lymph nodes or anywhere else in the body. Most breast cancers are invasive.

The most common type of invasive breast cancer is called invasive ductal carcinoma (IDC). IDC accounts for roughly 70 to 80 percent of all breast cancers. IDC starts in a milk duct and spreads, growing into other parts of the breast. With time, it may spread further, or metastasize, to other parts of the body.

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Types Of Breast Cancer

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