Lesion and Patient Characteristics Associated with Malignancy After a Probably Benign Finding on Community Practice Mammography

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Abstract
OBJECTIVE. The purpose of this study was to identify patient and lesion characteristics associated with a diagnosis of breast malignancy within 3 years of having a probably benign finding (BI-RADS category 3) on a mammogram obtained in a community radiology practice.MATERIALS AND METHODS. The subjects were women 30 years old and older without breast implants or previous breast cancer who received notice of a probably benign finding on a bilateral screening mammogram between January 1, 1996, and June 30, 1999, in a community-based practice. From 82,898 mammograms, we identified 129 breast lesions designated probably benign that progressed to malignancy within 3 years of an index examination (cases) and matched them to 129 lesions designated probably benign that did not progress to malignancy within 3 years (controls). A breast imaging specialist blinded to case–control status interpreted all examinations and recorded detailed lesion descriptors according to the BI-RADS lexicon.RESULTS. Case lesions were mo...

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