Sonographic findings in renal parenchymal malacoplakia

Malacoplakia of the kidney is a rare inflammatory disorder. We describe a c ase of bilateral renal malacoplakia in which the patient had diffuse involv ement of the left kidney and a focal lesion in the right kidney. Sonography showed a diffusely echogenic, enlarged left kidney with loss of corticomed ullary differentiation and a single anechoic lesion measuring 1.8 x 1.6 x 1 .3 cm in the right kidney. A left nephrectomy was performed, and the right kidney was managed conservatively with sonographic monitoring. (C) 2000 Joh n Wiley & Sons, Inc.