DURING YOUR STEREOTACTIC BREAST BIOPSY
The first part of the procedure will seem much like your mammogram except that you will be sitting or lying down. Your breast will be compressed, usually somewhat less tightly than during a regular mammogram. An x-ray will be taken to confirm that the proper area of the breast is centered in the window in the compression paddle. When the position is ideal, more x-rays will be obtained. With the help of a computer, the exact positioning of the biopsy needle is determined from these images. Using this information, the radiologist will then position the device holding the biopsy needle.
Your breast will then be cleaned with antiseptic. Next, the radiologist will numb the part of the breast to be biopsied by injecting local anesthetic. This is done with a tiny needle, and you may feel a stinging at this point. After the local anesthetic has taken effect, the radiologist will make a skin nick through which the biopsy needle will be placed. Another pair of images will be taken to confirm the needle position. Once placement is confirmed, the tissue samples (cores) are acquired. Often the tissue samples are x-rayed to ensure they contain a representative sample of the area in question.
The entire procedure usually takes 30-60 minutes.