Lobules are small round sacs in the breast that produce milk. When abnormal cells grow inside the lobules, but have not spread to nearby tissue or beyond, the condition is called lobular carcinoma in situ (LCIS).
Although the term LCIS includes the word “carcinoma,” LCIS is not invasive breast cancer. However, LCIS increases the risk of invasive breast cancer.
Learn more about LCIS.
Learn more about LCIS and breast cancer risk.
Benign breast conditions (also known as benign breast diseases) are noncancerous disorders that can affect the breast.
Some benign breast conditions can cause discomfort or pain and need treatment. Others don’t need medical treatment.
Many benign breast conditions mimic the warning signs of breast cancer and need tests (and sometimes a biopsy) for diagnosis.
Benign breast conditions can occur in both women and men.
Learn more about benign breast conditions in women.
Learn more about benign breast conditions in men.
Learn About Breast Anatomy
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