Radionuclide Imaging in Renal Pseudotumors

Abstract

Radionuclide renal imaging was employed in 43 patients in whom excretory urograms were suggestive, but not definite, of the presence of a renal mass. The results of the radionuclide method, performed with 197Hg-chlormerodrin as the scanning agent, were compared to those of arteriography. Radionuclide imaging correctly separated the real tumors from the pseudotumors in all cases. Arteriography is rarely necessary to settle the question of true versus spurious masses raised by an equivocal urogram.