Sagittal (above left) and transverse (above right) US images of the left kidney show it to be enlarged and echogenic in appearance with little recognizable normal renal parenchyma. Axial T2 (lower left), T1 (lower middle) and T1 post contrast (lower right) MR images of the right kidney shows a small round lesion that is hyperintense on T2, isointense on T1, and that does not enhance after the administration of contrast. Two additional identical appearing lesions were seen in the right kidney.
