Díaz de Liaño A, Soriano P, Monzón F J, Merck N, Ochoa L
Servicio de Cirugía General y Aparato Digestivo, Hospital de Navarra.
Rev Esp Enferm Dig. 1992 Dec;82(6):431-3.
Retroperitoneal tumors of lipomatous origin are usually liposarcomas. Only a minority of adipose tumors of the retroperitoneum show histological criteria of benignity. We present the case of a 52-year-old woman, diagnosed of a retroperitoneal lipoma with areas of myxoid degeneration. The tumor involved the left kidney and was resected completely.