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Rather well circumscribed rounded shaped soft tissue mass is seen at the left pre-renal retroperitoneal space showing heterogeneous CT architecture of dominant fat density (-45 HU), soft tissue strands and tumoral vessels seen traversing to the renal parenchyma. It is seen abutting the anterior aspect of the right kidney with an anterior renal parenchyma cortical defect is seen continuous with the mass. No internal discrete enhancing nodules were seen. It measures 6.8 x 7.8 x 8.3 cm in maximal axial and craniocaudal dimensions. The feeder artery of the mass is seen originating from the left renal artery.
Other much smaller three fat density nodules are seen within the right renal cortex, the largest measuring 9 mm in diameter and reading a mean attenuation -40 HU. No renal back pressure changes.