RADIOLOGY: KIDNEY: Case# 32940: RENAL MASS. Staging of left renal tumor. Within the posterior aspect of the interpolar region of the left kidney there is a 1.5 x 1.5 rounded mass. The lesion measures 36 HU pre-contrast and 86 HU post-contrast. No other solid masses seen in either kidney. Simple cortical cysts are seen in both kidneys. The left renal vein and IVC have a normal appearance. There is no lymphadenopathy. No focal cyst or mass is seen within the liver or spleen. There is prominence of the central intrahepatic biliary tree. There has been a cholecystectomy. The pancreas and adrenals are normal. There is no free intraperitoneal fluid. There has been hysterectomy. Visualization of the pelvic viscera is poor due to artifact arising from the bilateral THAs. There is an old ununited right iliac fracture and a united right sacral fracture. Marked degenerative change is seen throughout the lumbar spine. No focal bone destruction is seen. The lung bases are clear.