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> Common Breast Cancers
> Ductal Carcinoma in Situ (DCIS, Stage 0)
Ductal Carcinoma in Situ (DCIS, Stage 0)
Ductal carcinoma in situ (DCIS) is a non-invasive breast cancer (stage 0). “In situ” means "in place." With DCIS, the abnormal cells have not left the milk ducts to invade nearby breast tissue. In this section of Understanding Breast Cancer, we describe the standard treatments for DCIS (including their benefits and risks).