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[Mammary echography. Comparison with mammography].

The analysis of 249 cases of mammary pathologic conditions, confirmed by cytologic and/or histological examinations, comparatively studied by echography and mammography, shows a better diagnostic accuracy of US compared with mammography in benign pathology. The authors emphasize that US, although displaying lower diagnostic accuracy than mammography in malignancies, allow to correct some diagnostic mistakes of mammography, showing complementarity of both techniques, at least in women aged 30 to 50 years; in women under 30, US may be the first choice examination, while showing considerable limits in the fatty breasts of old women.