Key result
Excisional biopsy of a painful foot lesion in a 5-year-old girl revealed an unexpected synovial sarcoma involving the tibialis posterior tendon.
Case Report (n=1)
Highlights the importance of preoperative diagnostic imaging and well-planned biopsy for soft-tissue tumors of the foot to avoid missing rare malignancies like synovial sarcoma.
Rare pediatric foot lesions warrant malignancy consideration in biopsy planning; this case leaves open optimal diagnostic algorithms.
The purpose of this case report is to present a rare finding of synovial sarcoma in a 5-year-old child. Most soft-tissue masses of the foot are too often presumed to be small and benign; therefore, compared with soft-tissue sarcomas, they are difficult to clinically differentiate and treat. A 5-year-old girl presented with a painful lesion that was diagnosed as synovial sarcoma after an excisional biopsy was performed. This was an unexpected finding of synovial sarcoma involving the tibialis posterior tendon of her right foot. The patient presented with an 8-month history of tenderness and an antalgic gait. We would like to encourage that all soft-tissue tumors of the foot be preoperatively evaluated with the aid of diagnostic imaging so that a well-planned biopsy assessment can be performed, with adequate margins excised.
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Lepow et al. (2016) conducted a case report in Synovial sarcoma (n=1). Excisional biopsy was evaluated. Excisional biopsy of a painful foot lesion in a 5-year-old girl revealed an unexpected synovial sarcoma involving the tibialis posterior tendon.
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