DCIS

noninvasive malignant-looking abnormal cells inside the ducts of breast in women

DCIS can refer to:Defense Criminal Investigative Service, the criminal investigative arm of the Inspector General of the United States Department of DefenseDuctal carcinoma in situ, the most common non-invasive form of breast cancer
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DCIS ductal carcinoma in situ. DCIS Ductal carcinoma in situ, see there [more]DCIS - Community and Resources

Ductal carcinoma in situ. A noninvasive, precancerous condition in which abnormal cells are found in the lining of a breast duct. The abnormalcells 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 intraductal carcinoma.