A breast sonogram is commonly used to screen for tumors and other breast abnormalities. Unlike mammograms and CT scans, sonograms don’t use radiation and are considered safe for pregnant women and breast-feeding mothers.
A breast sonogram may be requested if you or your healthcare provider feels a lump in your breast. The sonogram helps your doctor determine whether the lump is a fluid-filled cyst or a solid tumor. It also allows them to determine the location and size of the lump and may identify the presence of enlarged lymph nodes.
While a breast sonogram can be used to assess a lump in your breast, it can’t be used to determine whether the lump is cancerous. That can only be established if a sample of tissue or fluid is removed from the lump and tested in a laboratory.
Aside from being used to determine the nature of a breast lump, a breast sonogram may also be performed on women who should avoid radiation, such as: