56-year-old male with end-stage renal disease on peritoneal dialysis with bilateral renal masses. Evaluate for solid mass. RIGHT KIDNEY: Measures 11.9 cm in length. Solid mass in the superior pole of the right kidney measures 3.4 x 2.3 x 2.3 cm. Numerous additional right renal cysts without septation or solid component. Likely extrarenal pelvis correlates with outside MRI examination. LEFT KIDNEY: Measures 11.5 cm in length. Increased echogenicity without hydronephrosis, nephrolithiasis, or solid mass. Numerous cysts measuring up to 3.1 cm without obvious solid component.URINARY BLADDER: Incompletely distended without focal abnormality. OTHER: No significant abnormalities noted.
Multicystic kidneys with right upper pole solid mass suspicious for neoplasm.