- Non-cancerous Breast Conditions
- What is normal breast tissue and what does it do?
- Finding non-cancerous breast conditions
- Breast cancer can be found early
- Diagnosing non-cancerous breast changes
- Types of non-cancerous breast conditions
- Fibrosis and simple cysts
- Ductal or lobular hyperplasia
- Lobular carcinoma in situ (LCIS)
- Phyllodes tumors
- Intraductal papillomas
- Granular cell tumors
- Fat necrosis and oil cysts
- Duct ectasia
- Other non-cancerous breast conditions
- How non-cancerous breast conditions affect breast cancer risk
- For women at increased breast cancer risk
- To learn more
Other non-cancerous breast conditions
Some other types of less common benign or non-cancerous tumors and conditions can also be found in the breast.
Radial scars, also called complex sclerosing lesions, are often found when a breast biopsy is done for some other purpose. Radial scars may distort the normal breast tissue.
Radial scars are not really scars, but are called such because they look like scars when seen under a microscope.
Radial scars do not usually cause symptoms, but they are important for 2 reasons. First, if they are large enough, they may look like cancer on a mammogram, or even on a biopsy. Second, they are linked to a slight increase in the woman’s risk of developing breast cancer.
Women who have them may be advised to see the doctor more often than usual. Many doctors recommend removing radial scars.
Other benign lumps or tumors
Lipomas are benign fatty tumors that can appear almost anywhere in the body, including the breast. They are usually not tender.
Other benign lumps or tumors that are sometimes found in the breast include hamartomas, hemangiomas, hematomas, adenomyoeptheliomas, and neurofibromas.
None of these conditions raises breast cancer risk, but they may need to be biopsied or removed to know what they are.
Last Medical Review: 03/16/2015
Last Revised: 06/10/2015