Pelvic and retroperitoneal lipomatosis: case report.

A rare case of pelvic and retroperitoneal lipomatosis lasting for more then three decades is presented. Although the disease is benign, it is usually progressive and may lead to renal insufficiency. On the other hand, treatment options are limited and with questionable effects. The clinical features, intravenous urography, computed tomography and magnetic resonance images, differential diagnosis and therapeutic aspects of this rare disease are presented.