Cancer of the breast that forms in and is restricted to the ducts

Cancer that starts to grow inside the milk ducts in your breast.

Abnormal cells that are contained within the milk duct and have not spread outside the duct. Also known as DCIS (ductal carcinoma in situ).

(DUK-tal kar-sin-O-ma in SYE-too) Abnormal cells that involve only the lining of a duct. The cells have not spread outside the duct to other tissues in the breast. Also called ductal carcinoma in situ.

A noninvasive, precancerous 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, intraductal carcinoma 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 ductal carcinoma in situ.

Also called ductal carcinoma in situ. See: DCIS.

See ductal carcinoma in situ