74-year-old male with history of left renal lesion seen on recent CT. ABDOMEN:LIVER, BILIARY TRACT: Scattered subcentimeter nonenhancing cysts. No intrahepatic biliary ductal dilatation.Cholelithiasis.SPLEEN: Splenic varices.PANCREAS: No significant abnormality noted.ADRENAL GLANDS: No significant abnormality noted.KIDNEYS, URETERS: There is a homogeneously T2 hypointense and T1 isointense lesion within the left interpolar region demonstrating mild enhancement measuring 2.9 x 1.9 cm. This lesion correlates to prior CT findings.Left upper pole cystic lesion measures 4.6 x 3.4 cm and contains a thin nonenhancing septations.Additional nonenhancing cystic lesions are present bilaterally.RETROPERITONEUM, LYMPH NODES: No significant abnormality noted.BOWEL, MESENTERY: No significant abnormality noted.BONES, SOFT TISSUES: No significant abnormality noted.OTHER: 11 mm enhancing right retroperitoneal nodule (image 2 of series 801).
1. Enhancing left interpolar solid renal lesion compatible with renal cell carcinoma, likely papillary type given imaging characteristics.2. Enlarging nonspecific enhancing retroperitoneal nodule likely related to lymphoma.