Revisiting the Mammographic Follow-Up of BI-RADS Category 3 Lesions

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Abstract
OBJECTIVE. Using data collected for one series during 1987-1989 and data collected for another series during 1996, we sought to compare the frequency of and positive predictive value for carcinoma of the breast in nonpalpable, probably benign lesions that had been detected on and followed up with mammography.MATERIALS AND METHODS. During 1996, mammography was performed in 18,435 women of whom 544 (3.0%) had lesions assigned to Breast Imaging Reporting and Data System (BI-RADS) category 3 for nonpalpable, probably benign lesions. The lesions in the women were assessed as BI-RADS category 3 after the patients had undergone a diagnostic study that included additional imaging, sonography, and a focused physical examination. Patients with BI-RADS category 3 lesions were recommended for mammographic surveillance. A minimum of 2 years of follow-up data was available for 511 patients, our study population. We compared the findings for our study population with those of the previous study.RESULTS. Ninety-seven per...