The radiologic workup of a palpable breast mass.

The finding of a palpable breast mass on physical examination often warrants a radiologic workup including directed ultrasonography, diagnostic mammography, and, at times, biopsy with ultrasonographic guidance. The choice of initial imaging study is most often guided by the patient's age at presentation. Communicating the clinical findings to both the patient and the radiologist helps ensure the selection of the most appropriate imaging studies and helps in the interpretation of those studies. Every woman with a palpable breast mass, regardless of her age, should undergo imaging to exclude or establish the diagnosis of cancer.