For 3058 consecutive women who underwent film-screen mammography, oblique, mediolateral and cephalocaudal images were obtained. Eighty neoplasms were identified. The oblique view disclosed all but 1 of the cancers; for 6 patients, it was the only projection that depicted a lesion in the upper-outer quadrant of the breast. A 2 view mammographic examination should consist of an oblique and cephalocaudal projection.