Radiol Bras. 2010 Mai/Jun;43(3):171–174 Original Article • Artigo Original Positive predictive value of Breast Imaging Reporting

Prado1, Maria Tereza Paraguassú Martins Guerra2 OBJECTIVE: The present study was aimed at evaluating BI-RADS ® 3, 4 and 5 categories as positive predictive value for malignancy of non-palpable breast lesions, correlating mammographic and histopathological findings. MATERIALS AND METHODS: In the period from July/2005 to March/2008, 371 patients with mammograms classified as BI-RADS categories 3, 4 and 5 were referred to a center of reference in cancer treatment in Terezina, PI, Brazil, for histopathological investigation and had their mammograms reviewed. Among these 371 patients, 265 were submitted to core-biopsy and 106 to preoperative needle localization. RESULTS