Renal replacement lipomatosis: ultrasonography and computed tomography findings

Replacement lipomatosis of the kidney is the result of severe atrophy or de struction of the rrenal parenchyma often caused by calculous disease with s econdary marked proliferation of renal sinus, renal hilus, and perirenal fa tty tissue. The diagnosis is difficult to establish with conventional radio graphic methods. Although ultrasonography may show highly;suggestive findin gs, computed tomography seems to be the most accurate method for demonstrat ing the distinctive features of replacement lipomatosis. Uultrasonographic and computed tomographic features in three cases of replacement lipomatosis of the kidney are reported.