MRI findings of uterine lipoleiomyoma correlated with pathologic findings

Our objective was to describe the MRI findings of uterine lipoleiomyoma and to correlate them with histopathologic findings.

Uterine lipoleiomyoma typically presents as a well-demarcated mass showing hyperintensity with hypointense amorphous bundles on T1- and T2-weighted images with chemical shift artifacts. The hyperintense region suppressed on chemical shift fat-suppressed sequences and the hypointense bundles enhanced by contrast material pathologically correspond to mature fat tissue and smooth muscle tissue, respectively. Even in an atypical case with a small volume of fat tissue in the mass, a fat-suppression MRI sequence is especially useful for the diagnosis.