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DOI:10.2214/AJR.07.2230
AJR 2007; 189:W100-W104
© American Roentgen Ray Society

Clinical Observations

MRI Findings of Uterine Lipoleiomyoma Correlated with Pathologic Findings

Kazuhiro Kitajima1,2, Yasushi Kaji1, Kazufumi Imanaka3, Ryo Sugihara2 and Kazuro Sugimura2

1 Department of Radiology, Dokkyo Medical University School of Medicine, Mibu, Japan.
2 Department of Radiology, Kobe University Graduate School of Medicine, Kobe, Japan.
3 Department of Radiology, Nishi-Kobe Medical Center, Kobe, Japan.

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

CONCLUSION. 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.

Keywords: lipoleiomyoma • MRI • myoma • uterine neoplasms


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