Wendy Elvis, 633rd Surgical Operations Squadron lead mammography technician, explains to Melissa McRae, 633rd Surgical Operations Squadron command secretary, how a breast biopsy machine is used at Joint Base Langley-Eustis, Va., Oct. 17, 2016. A patient may need a breast biopsy if a patient’s mammogram showed more testing is required, due to lesions in the breast which can be as small as a grain of sand. (U.S. Air Force photo by Staff Sgt. Teresa J. Cleveland)