International Brazilian Journal of Urology ()
Extensive renal sinus lipomatosis in xanthogranulomatous pyelonephritis simulating liposarcoma
Abstract
ABSTRACT Renal replacement lipomatosis is a condition characterized by varying degrees of renal parenchymal atrophy and perirenal fibrofatty proliferation secondary to chronic inflammation such as xanthogranulomatous pyelonephritis. In severe cases, imaging findings can be misdiagnosed as retroperitoneal liposarcoma.