Stereotactic core biopsy is performed for lesions seen on mammography. Core biopsies are minimally invasive procedures that allow sampling of the breast tissue and therefore avoid a surgical excisional biopsy. Stereotactic core biopsies are performed with the patient lying on their stomach on a raised bed. The breast falls through a hole in the table and the technologist manipulates the breast for the biopsy. Local anesthesia is then given and a small paper cut size incision is made to perform the biopsy. The patient leaves the procedure with a band aid over the incision and often returns to their routine activity the following day. Studies have been performed to show the results of core biopsy are as accurate as surgical biopsy.