Breast ultrasound is a painless test in which sound waves are used to visualize the internal structures of the breast. Images are created by the sound waves, to help identify fluid filled cysts or solid nodules (solid lumps). Ultrasound is not currently felt to be appropriate as a screening exam for breast cancer, so it is not routinely performed for all patients. However, it is a valuable diagnostic test used in evaluating possible breast abnormalities questioned during mammography, breast MRI, physical exam, or breast self exam. Ultrasound is generally used after mammography, and it is only used before or in place of mammography in certain cases, such as very young patients or pregnant women.
Breast ultrasound is performed with the patient lying on an exam table. Gel is applied to the skin to allow transmission of sound waves. We evaluate the specific area of possible abnormality questioned on the mammogram or MRI, or the area of a lump that can be felt by you or your doctor. The results of a breast ultrasound exam will be correlated with your other test results, and explained to you before you leave the office.
Remember that you cannot be sure if a new breast lump is a cyst by the way it feels, so it is important to report any new or persistent breast lump to your doctor.