Ductal carcinoma in situ (DCIS); drawing shows a lobe, ducts, and fatty tissue in a cross section of the breast. The inset shows a normal duct and a duct with abnormal cells.

Ductal carcinoma in situ (DCIS). Abnormal cells are found in the lining of a breast duct.

From: Breast Cancer Treatment (PDQ®)

Cover of PDQ Cancer Information Summaries
PDQ Cancer Information Summaries [Internet].
Bethesda (MD): National Cancer Institute (US); 2002-.

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