Which two standard mammography views are used for routine screening exams?

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Two standard views used for routine screening mammography are the craniocaudal view and the mediolateral oblique view. The craniocaudal projection compresses the breast from top to bottom, bringing tissue into a single plane so calcifications and masses in central and inner regions are clearly visible and the nipple is seen in profile for orientation. The mediolateral oblique projection angles the beam to image tissue from the medial toward the lateral side, capturing the tail of Spence and the axillary region, which helps detect abnormalities that can be hidden in a straight-on view and covers the upper outer quadrant where cancers often occur. Together, these views maximize tissue coverage, reduce overlapping structures, and provide a consistent basis for comparing current and prior exams. Other options don’t provide the same comprehensive coverage or standard screening approach, as they either involve nonstandard projections or views used for other radiographic purposes.