TITLE:
Synovial Sarcoma of Tibialis Anterior Tendon—Rare Case Report
AUTHORS:
Bathina Sri Prabhav, Prasanth, Anna Mohan Yadav, Reddi Hari Kumar, Rama Murthy
KEYWORDS:
Soft Tissue Sarcoma, Synovial Sarcoma, Recurrence
JOURNAL NAME:
Open Journal of Orthopedics,
Vol.16 No.6,
June
24,
2026
ABSTRACT: Soft-tissue sarcomas (from the Greek sarcoma [fleshy growth]) are malignant tumors of mesenchymal or connective tissue origin. They are rare, comprising less than 1% of all adult cancers, and are heterogeneous, having an extensive range of histological types and biological behaviors. Synovial sarcomas represent a unique subset of soft tissue sarcomas and account for 5 - 10% of all STS. The name synovial sarcoma was proposed because the lesions showed a histological resemblance to normal synovial tissue. Thereafter, tumors have been diagnosed as arising in areas without synovial tissue, and the name synovial sarcoma may be a misnomer. Synovial sarcoma occurs predominantly in older children and young adults. It was named for its frequent occurrence within the soft tissue around large joints, particularly the knee. It is unusual for SS to invade joints, but it is found in close association with tendon sheaths, bursa, and joint capsules. Joint cavity involvement occurs in less than 5% of patients. We report a gentleman who underwent surgical excision of the tumour 3 years ago, after which recurrence was seen 6 months after surgery. Our patient was informed that data concerning the case would be submitted for publication and gave written consent.