Although hepatic adenoma can sometimes "washout", this is atypical and raises concern that the lesion represents a hepatocellular carcinoma. In this instance, however, the reduced signal resulting in a washed-out appearance is at least partly due to the image is "fat saturated" and this lesion loses a lot of signal on the T1 out-of-phase sequence.

In any case, because of the atypical appearances the lesion was resected and was histopathology proven hepatic adenoma. The second lesion, posterolateral to the adenoma, is consistent with an incidental FNH and was not resected.