Case Report: Diagnostic pitfalls in soft tissue tumors: synovial sarcoma masquerading as venous malformation

SS may clinically and radiographically mimic benign vascular anomalies, particularly in children. Discrepancies in vascular dynamics on DSA and atypical imaging features warrant suspicion for malignancy. Early histopathological validation is critical to prevent diagnostic delays, optimize multimodal therapy, and improve outcomes in this aggressive tumor.