Synovial sarcoma (SS) is a rare and malignant mesenchymal neoplasm. We report a case of a 16-year-old Chinese female diagnosed with biphasic synovial sarcoma. The imaging features, surgical procedures and pathological results of the lesion were described in detail. Additionally, we conducted a review of the literature on synovial sarcoma of the thigh over the past 2 decades, identifying a total of 25 relevant case reports and summarizing the characteristics of these cases. Synovial sarcoma has a high degree of malignancy, with a high recurrence and metastasis rate, and a 5-year survival rate of 36%-76% and a 10-year survival rate of 20%-63%, so early detection of the lesion and preoperative differential diagnosis are of paramount importance in the treatment of patients.
Keywords: biphasic; literature review; mesenchymal neoplasm; synovial sarcoma; ultrasound.
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