Ultrasound
A procedure that uses high-energy sound waves to look at tissues and organs inside the body. The sound waves make echoes that form pictures of the tissues and organs on a computer screen (sonogram). Ultrasound may be used to help diagnose diseases, such as cancer. It may also be used during pregnancy to check the fetus (unborn baby) and during medical procedures, such as biopsies. Also called ultrasonography.
Usual Hyperplasia
A benign (not cancer) breast condition where breast cells are growing rapidly (proliferating). The proliferating cells look normal under a microscope. Although usual hyperplasia is not breast cancer, it increases the risk of breast cancer.