A Case of Postoperative Multiple Organ Metastases from Renal Ewing Sarcoma and Review of the Literature

Author(s): Guangyi Huang, Jie Liao, Zheng Chen, Xiaoping Qin, Liwei Wei, Jinhua Li, Kaifeng Deng, Xiangyue Li, Yumin Zhuo

The incidence of extra-osseous Ewing sarcoma is low, and extra-osseous Ewing sarcoma of renal origin is even less frequently reported. The clinical manifestation of Ewing sarcoma is non-specific and early diagnosis is difficult, and the diagnosis mainly relies on pathological histology and immunohistochemistry. The disease is highly malignant, with a high rate of local recurrence and distant metastasis, and is currently treated with a combination of surgery, chemotherapy and radiation therapy. The Department of Urology of the First Affiliated Hospital of Jinan University admitted a 71-year-old male patient in 2021 with carnal hematuria and lumbar and abdominal pain as the first manifestation, and the preoperative examination showed a type of round mixed signal mass in the right kidney. After admission, the patient underwent mass resection and inferior vena cava dissection, and the postoperative pathology showed a small round cell malignant tumor, which was considered as extraosseous Ewing sarcoma in combination with immunohistochemical results. Three weeks after surgery, the patient developed multiple organ metastases.

Extraosseous Ewing Sarcoma, Kidney, Diagnosis, Treatment

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