Related Experiment Video
Updated: Aug 29, 2026
Murine Bilateral Renal Lymphadenectomy
Published on: December 30, 2025
[Liposarcoma of the perirenal cell]
Maria Isabel Martínez León1, Juan Antonio Martos Forniels, Isabel María Arranz Salas
1Servicio de Radiodiagnóstico y 1 Departamento de Anatomía Patológica, Hospital Universitario Carlos Haya, Málaga, España. marcela337@hotmail.com
Objectives:
To show the imaging tests characteristics and differential diagnosis of masses located within the retroperitoneal perirenal area.
Methods:
Diagnostic imaging tests (KUB x-ray, ultrasound, helical CT scan with IV contrast) and follow-up in one case of perirenal cell liposarcoma.
Results:
The study of the surgical specimen after renal tumorectomy in a patient with a solitary kidney resulted in the present diagnosis.
Conclusions:
Liposarcoma is a malignant neoplasia derived from fatty tissue. Approximately 13% are located in the retroperitoneal area, and less than 1/3 arise from perinephric fat. We report one case of liposarcoma located in the perirenal cell as an incidental finding during contralateral psoas muscle abscess follow-up in a patient with a solitary kidney after surgery for xanthogranulomatous pyelonephritis. Successive controls during the last year allowed us to evaluate the evolution of this lesion's.
