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Updated: Nov 30, 2025
In Vivo Model for Testing Effect of Hypoxia on Tumor Metastasis
Published on: December 9, 2016
A rare entity of Primary Ewing sarcoma in kidney
Li Cheng1, Yujie Xu1, Hong Song2
1Department of Urology, Anhui Province, The First Affiliated Hospital of Wannan Medical College, Wuhu, People's Republic of China.
Background:
Ewing sarcoma (ES) or primitive neuroectodermal tumors (PNET) represents a spectrum of poorly differentiated and aggressive malignancies. It rarely arises from the kidney and accounts for less than 1% of renal mass. Given the uncharacteristic clinical symptoms and imaging features, renal Ewing sarcoma (RES) is often diagnosed by postoperative pathology.
Case Presentation:
Herein, we depicted a case of RES, which was administrated in our institution by chief complaints of intermittent left plank pain and palpable abdominal mass. We demonstrated the aggressive behavior of this renal malignancy and summarized its therapeutic modalities and outcomes.
Conclusion:
The diagnosis of RES relies on integrated analysis including histomorphology, immunohistochemical staining and confirmation of molecular-genetic testing. Despite the surgery and adjuvant therapy, optimized and potent therapeutic regimes are still urgently needed to improve the poor prognosis of RES.
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