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Breast Ultrasound |
 Read more about this in the Guide to Clinical Preventive Services U.S. Department of Health and Human Services |
Mammography is very good at detecting radio-opaque changes, such as calcifications or architectural distortion from a mass effect. Ultrasound, in contrast, is very good at distinguishing cystic from solid masses. This is probably most useful following mammographic findings of a benign-appearing, non-palpable density, although it can also be used with palpable masses.
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