MRI study shows the lower abdominal mass abutting the sigmoid mesocolon, displacing the sigmoid colon to the right, related to the superior urinary bladder wall and the rectus abdominis muscle. It elicits intermediate signal intensity in T1 with multiple hyperintense foci of fat that are suppressed in T1 fat sat. In T2, the lesion appears of heterogeneous high signal with internal serpentine undulant membranes "water lily sign". It elicits T2 shine-through on the diffusion study. The lesion shows no enhancement in the post-contrast study.