Problem-solving ultrasound.

This article addresses the accepted indications for using ultrasound alone or in conjunction with other imaging techniques in solving problems of breast diagnosis and guiding patient management. The indications include evaluation of palpable and mammographic masses; guidance of interventional procedures; evaluating problems with implants; radiation treatment planning; and as the initial imaging technique in young,pregnant, and lactating patients. Evolving indications and controversial applications for breast ultrasound are also discussed.