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Case Reports in Urology
Volume 2012 (2012), Article ID 862493, 3 pages
doi:10.1155/2012/862493
Primary Pleomorphic Undifferentiated Sarcoma—a Rare Renal Localization: A Case Report
1Department of Urology, Hassan II University Hospital of Fez, Fez 30020, Morocco
2Department of Anatomy, Faculty of Medicine of Fez, Fez, Morocco
3Department of Oncology, University Hospital of Fez, Fez, Morocco
Received 2 October 2012; Accepted 23 October 2012
Academic Editors: S. J. Hong and S. Takahashi
Copyright © 2012 Soufiane Mellas et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
Undifferentiated pleomorphic sarcoma is known as a soft tissue sarcoma. Very few cases of this tumor originating from the renal parenchyma or renal capsule have been reported. We report a case of a 70-year-old patient admitted for enormous ureterohydronephrosis and pyelonephritis due to a pelvic ureter lithiasis. After draining by ureteral double J catheter, a nephroureterectomy was performed for nonfunctional kidney confirmed by scintigraphy. The histopathological study shows a pleomorphic undifferentiated sarcoma. The patient was sent to oncologists. Chemotherapy was proposed but the family decided to stop the treatment. The patient passed away 10 months later. Clinicians and pathologists should be aware of the very low occurrence of this renal tumor, which is extremely rare. Currently there is no consensus about its management. Our case extends the literature concerning this tumor.