Abstract
Synovial sarcoma originating from the kidney is extremely rare. A 13-year-old girl presented with a mild left flank pain of one-week duration, with no associated history of hematuria or any other systemic symptoms. Computed tomography (CT) demonstrated a 6 × 13 × 9 cm mass in the left kidney. No soft tissue or extrarenal masses were identified. The patient received a combined of treatment with doxorubicin and ifosfamide. A radical nephrectomy was performed in the left kidney with no complications. Postoperative pathology revealed post-chemotherapy residue of monophasic spindle cell synovialosarcoma of the left kidney. She received a combined treatment with doxorubicin and ifosfamide in concomittance with external radiation therapy. The patient was re-examined 4 months after surgery. An abdominal and pulmonary CT found no recurrence or metastasis.
Highlights
Synovial Sarcomas (SS) are a group of Soft Tissue Sarcomas (STS) affecting mainly young adults
This tumor presents a diagnostic dilemma because it is quite difficult to differentiate it from other renal neoplasms, such as metastatic sarcoma, renal cell carcinoma with sarcomatoid differentiation, which may have similar histological features
We present the case of a 13-year-old girl who was diagnosed with primary renal synovial sarcoma
Summary
Synovial Sarcomas (SS) are a group of Soft Tissue Sarcomas (STS) affecting mainly young adults. The most common site of occurrence is in extremities [1]. Primary Synovial Sarcoma (PSS) of the kidney is a recently described entity [2]. Fewer than 50 cases of primary renal synovial sarcoma are reported to date [3]. This tumor presents a diagnostic dilemma because it is quite difficult to differentiate it from other renal neoplasms, such as metastatic sarcoma, renal cell carcinoma with sarcomatoid differentiation, which may have similar histological features. We present the case of a 13-year-old girl who was diagnosed with primary renal synovial sarcoma
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