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Orthopedics & Traumatology

Synovial Sarcoma, Knee/Lower Extremity

ICD-10 Code
C49.20

Aggressive soft tissue sarcoma often occurring near joints in young adults.

Clinical Presentation & Protocol

Patient Usually Complains Of

Patient presents with a slowly enlarging, deep-seated soft tissue mass in the [location, e.g., popliteal fossa/periarticular knee]. Reports [duration] of localized discomfort, with occasional nocturnal pain. Denies systemic symptoms, recent trauma, or constitutional B-symptoms. Mass is noted to be firm, fixed to deep structures, and non-tender on palpation.

Clinical Examination Findings

Physical examination reveals a [size in cm] firm, non-mobile, deep-seated mass located in the [specific region]. No overlying skin changes, ulceration, or erythema noted. Neurovascular status of the distal extremity is intact with palpable pulses and normal sensation. Range of motion of the knee joint is [full/restricted] with no evidence of joint effusion or instability.

Treatment Protocol

Plan includes urgent MRI of the affected extremity with and without contrast to evaluate extent and neurovascular involvement. Core needle biopsy is indicated for histopathological confirmation. Multidisciplinary team (MDT) referral to Orthopedic Oncology for consideration of wide surgical excision, potentially combined with neoadjuvant or adjuvant radiotherapy/chemotherapy based on grade and stage.

Detailed clinical guide coming soon.