MRI
Coronal T2
Sagittal T2
Axial T2
Non-contrast MRI study of pelvis reveals markedly enlarged uterus with a large globular heterogenous hypervascular sharply demarcated leiomyoma arising from posterior body and fundus of uterus.
A concurrent large cystic lobulated longitudinally oriented retroperitoneal lesion with thin septae and loculations is seen, which is distinctly separate from uterine margin (helps to rule out mesenchymal malignancy). Dilated tortous flow voids are seen through it. A similar smaller cystic lesion was seen at left adnexa.