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    Breast Cancer Types - Topic Overview

    Breast cancer is the abnormal growth of the cells that line the ducts and lobes of the breast. The main types of breast cancer are:

    There are also some less common types of breast cancer, such as inflammatory breast cancer.

    When abnormal cells in the lining of a duct or lobe of the breast haven't spread, they are said to be "in situ" (say "in-SY-too").

    WebMD Medical Reference from Healthwise

    Last Updated: November 14, 2014
    This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.
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