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Mammotomy Mammotomy removes a larger sample of abnormal breast tissue for a definitive and accurate diagnosis. It requires a single insertion of a special needle, unlike core needle biopsy, which requires several seperate needle insertions. However, mammotomy is not ideal for abnormalities that are hard to reach. Stereotactic mammography or ultrasound are used to pinpoint the exact location of the abnormality. Stereotactic mammography uses a series of computerized mammograms to locate the abnormality in three dimensions. With ultrasound, the radiologist watches the needle on the monitor. During mammotomy the patient is positioned in the upright or prone (face down) position. |