Skip to Content
Home > Wellness > Health Library > Ductal Carcinoma in Situ (DCIS)
Browse and register for related classes.
Ductal carcinoma in situ (DCIS or intraductal carcinoma) is a very
early form of noninvasive breast cancer that begins in the lining of the small
milk ducts that drain milk out of the breast through the nipple. It usually
does not cause a lump in the breast and is seen as small calcium deposits
(microcalcifications) on a mammogram.
Most experts consider DCIS a precancerous condition that may
progress to invasive breast cancer. Unfortunately, doctors do not know how to
tell which cases of ductal carcinoma in situ will progress and which will
Treatment options for DCIS include mastectomy or lumpectomy with
radiation. The medicine tamoxifen may be used to reduce the risk of future
Current as of:
November 14, 2014
Sarah Marshall, MD - Family Medicine & Douglas A. Stewart, MD - Medical Oncology
To learn more about Healthwise, visit Healthwise.org.
© 1995-2015 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.
Feeling under the weather?
Use our interactive symptom checker to evaluate your symptoms and determine appropriate action or treatment.
250 Pleasant Street
Concord, NH 03301
Contact Concord Hospital
View Quality Data
© 2016 Concord Hospital