Stereotactic breast biopsy uses computerized X-rays to precisely
locate an area within the breast from which tissue samples need to be taken.
This procedure is especially useful when a doctor can see calcifications or a
mass in the breast on a mammogram but can't locate it by touch.
Based on mammograms taken from two angles, computerized equipment maps
the precise location of the mass or calcifications. A small incision is then
made in the skin of the breast. The instrument is used to guide a needle to the
exact site to collect tissue samples for biopsy. Samples of breast tissue are
removed and then examined under a microscope for signs of cancer.
Stereotactic biopsy may not be recommended for all types of breast lumps.