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Large lobulated mass extending from the left lateral aortic region to the pelvis reaching the pouch of Douglas and the prevesical region Its located below the colonic frame and displaces superior and laterally some small bowel loops. It shows heterogeneous signal intensity, predominantly hyperintense in T2 and STIR sequences with hypointense centre ("ring pattern") and iso-hypointense in T1 sequences. Mild central enhancement in late phases is seen.