If you are experiencing a medical emergency please dial 911 immediately
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").
|Primary Medical Reviewer||Sarah Marshall, MD - Family Medicine|
|Specialist Medical Reviewer||Douglas A. Stewart, MD - Medical Oncology|
|Last Revised||June 28, 2013|
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