Case Report: A case of primary renal synovial sarcoma

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A 53-year-old male was diagnosed with primary renal synovial sarcoma after presenting with intermittent lumbar and abdominal pain.
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Imaging revealed a large left renal mass measuring 13.3 cm × 11.6 cm, suggestive of malignancy.
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Postoperative analysis confirmed synovial sarcoma through immunohistochemistry and identification of the SS18-SSX2 fusion gene.
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The patient underwent four cycles of chemotherapy with epirubicin and ifosfamide, showing no signs of recurrence or metastasis.
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Primary renal synovial sarcoma is rare, accounting for less than 2% of renal malignancies, and requires specific diagnostic approaches.

Frontiers In Surgery

by Xuan Li, Jiahao Su, Zijie Tang, Yuan Li, Xiaogang Feng, Feng Lin, Hanyu Chen, Qizhong Fu, Xujie Liu, Ying Liu
May 21, 2026

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