stereotactic procedure
(STAYR-ee-oh-TAK-tik proh-SEE-jer)
A procedure that uses special equipment and imaging techniques to find an abnormal area in the brain, breast, lung, or liver and help guide the removal of a tissue sample from that area. Stereotactic procedures are also used to treat some cancers, including cancers of the brain, breast, lung, and liver, by precisely delivering radiation directly to a tumor. Also called stereotaxic procedure.