Ductal carcinoma in situ. Definition

Medical Definition: Ductal carcinoma in situ

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 instances, ductal carcinoma in situ may become invasive cancer and spread into other tissues but, for now, do not know how to predict which lesions will become invasive. Also called DCIS and intraductal carcinoma.

* Automatic translation