Incidental hepatic lesions detected on breast MRI: Rate of malignancy and implications for utilization

The objective of this study was to determine the rate of malignancy in incidentally detected T2 hyperintense hepatic lesions at breast MRI.

Incidental hepatic lesions identified during breast MRI, for which abdominal imaging was recommended, were retrospectively analyzed.

Of the hepatic lesions, 97.3% were benign, and 2.7% were malignant, with a significant association between indication for the breast MRI and the malignancy status of the hepatic lesion (Fisher's Exact, P < 0.0142).

Our initial experience suggests the benign nature of incidentally detected T2 hyperintense hepatic lesions at breast MRI in women without a newly diagnosed breast cancer.