MRI
The uterus is displaced to the left of the pelvis by a large heterogeneous mass lesion. Posterior to this mass, there is a similar-appearing discrete lesion that appears to be abutting the larger lesion. Both masses have high T1/T2 signals, having a multiloculated/multiseptated appearance. They demonstrate a high T1 signal and a high signal on FS T1 images, indicating a large blood product component.
These changes are accompanied by multifocal solid components, which are low on both T1/T2 sequences. No signal dropped out to suggest calcification. There is no evidence of fat within the lesions.