Computed tomography of the excised kidney.

Autopsy and surgical specimens of 10 kidneys were studied with the EMI scanner to determine the possible application of computed tomography in differentiating benign cysts from solid tumors. Relative attenuation values obtained from the computer print-out and displayed by cathode ray tube demonstrated differences among normal renal tissue, benign renal cysts, renal-cell carcinoma, and angiomyolipoma.