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Fat necrosis happens when an area of the fatty breast tissue is damaged. Learn more about the diagnosis and treatment of fat necrosis and oil cysts in the breast.
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Many breast lumps turn out to be caused by fibrosis or cysts, which are non-cancerous changes in breast tissue. Learn more here.
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Mastitis is an infection in the breast. It most commonly affects women who are breastfeeding. Learn more about mastitis causes and treatment here.
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Duct ectasia is a benign condition that occurs when a breast duct widens and its walls thicken. Learn more about duct ectasia diagnosis and treatment.
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Granular cell tumors start in primitive nerve cells. They are very rarely found in the breast. Learn more about granular cell tumor diagnosis and treatment.
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Lobular carcinoma in situ means abnormal cells are in the breast. LCIS is not cancer but can signal a higher risk of breast cancer. Learn more here.
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In adenosis, the breast lobules are enlarged, and there are more glands than usual. Adenosis is often found in breast biopsies of women who have fibrocystic changes.
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Fibroadenomas are common benign tumors made up of both glandular breast tissue and connective tissue. Find detailed information about fibroadenomas here.
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Phyllodes tumors are rare breast tumors that start in the connective tissue and are most common in women in their 30s and 40s. Learn more.
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Find information on the less common types of benign tumors and conditions that can be found in the breast including radial scars and lipomas.