"Upon recall from screening mammography, repeating the original view(s) with the finding is often helpful, and additional views should be considered:"
"asymmetry of residual parenchyma post-breast reduction surgery"
"Under the BI-RADS lexicon 5, there are four types of asymmetries:"
"The BI-RADS lexicon defines four types of asymmetries 5:"
"Asymmetries that turn out to be summation artifacts are benign (BI-RADS 2). The BI-RADS Atlas offers guidance regarding the other categories of asymmetries 5:"
"Asymmetries that turn out to be summation artifacts are benign (BI-RADS 2). The BI-RADS Atlas offers guidance regarding the other categories of asymmetries 5:"
"A solitary focal asymmetry (without architectural distortion, calcifications, or an underlying mass identified on diagnostic mammography and ultrasound) is assessed as BI-RADS 3 (likely benign)."
"A developing asymmetry, unless shown to be characteristically benign, such as a cyst on ultrasound, is assessed as BI-RADS 4 (suspicious). An exception would be if there is a clear benign explanation, such as recent surgery, trauma, or infection at that site."
"Global asymmetry, in the absence of a palpable correlate, is assessed as BI-RADS 2 (benign)."
"The criteria for an asymmetry include that it is seen only on one projection, the borders are not convex, or the centre is not denser than the periphery (e.g. it is interspersed with fat)."