Ductal carcinoma in situ. A precancerous condition characterized by the clonal proliferation of malignant-looking cells in the lining of a breast duct without evidence of spread outside the duct to other tissues in the breast or outside the breast. DCIS is clearly the precursor (forerunner) of invasive breast cancer. This is evident from the sharin [..]

A noninvasive condition in which abnormal cells are found in the lining of a breast duct. The abnormal cells have not spread outside the duct to other tissues in the breast. In some cases, DCIS may be [..]

See

A noninvasive (noninfiltrating) Carcinoma of the Breast characterized by a proliferation of malignant Epithelial Cells confined to the mammary ducts or lobules, without Light-Microscopy evidence of in [..]

A noninvasive condition in which abnormal cells are found in the lining of a breast duct. The abnormal cells have not spread outside the duct to other tissues in the breast. In some cases, DCIS may become invasive cancer and spread to other tissues, although it is not known at this time how to predict which lesions will become invasive. Also called [..]

DCI|lang=en

A collection of abnormal cells which are found only in the lining of the milk duct of the breast. These abnormal cells have not spread outside of the duct. This early noninvasive form of cancer is usu [..]