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

OBJECTIVE: The objective of this study was to determine the rate of malignancy in incidentally detected T2 hyperintense hepatic lesions at breast MRI. METHODS: Incidental hepatic lesions identified during breast MRI, for which abdominal imaging was recommended, were retrospectively analyzed. RESULTS: 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). CONCLUSION: 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.