Extensive renal sinus lipomatosis in xanthogranulomatous pyelonephritis simulating liposarcoma

Vol. 44 (3): 642-644, May – June, 2018

doi: 10.1590/S1677-5538.IBJU.2017.0509


RADIOLOGY PAGE

Sabrina de Mello Ando 1, Raquel Andrade Moreno 1, Públio Cesar Cavalcante Viana 1, Fernando Ide Yamauchi 1
1 Departamento de Radiologia, Hospital das Clínicas da Universidade de São Paulo HC-FMUSP, São Paulo, Brasil

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.

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