MRI
Motion degraded scan.
Within the limitations, there is a soft tissue lesion up to 4.8 x 2.7 x 6.3 cm inseparable from lower aspect of right latissimus dorsi muscle with well defined margins inferiorly and more ill-defined superiorly. The lesion is roughly isointense to muscle on T2WI and shows heterogenous signal on T2WI and STIR. Minor soft tissue edema adjacent to the lesion.
No osseous invasion of the adjacent 11th rib.
Incidental partially visualized horseshoe kidney and right pleural effusion.