what is ductal carcinoma in situ
Ductal carcinoma in situ (DCIS) is the presence of abnormal cells inside a milk duct in the breast. DCIS is considered the earliest form of breast cancer. DCIS is noninvasive, meaning it hasn't spread out of the milk duct to invade other parts of the breast. DCIS is usually found during a mammogram done as part of breast cancer screening or when there is another concern with a woman's breast.
DCIS â Ductal Carcinoma In Situ. Ductal carcinoma in situ (DCIS) is the most common type of non-invasive breast cancer. DCIS is called non-invasive because it hasnât spread beyond the milk duct into any normal surrounding breast tissue.