Musculoskeletal CT Appearances

Synovial Sarcoma CT Findings

• Well-circumscribed soft tissue mass
• Round or oval
• Punctate peripheral calcifications
• > 5cm
• Heterogeneous enhancement
• Multi-nodular morphology
• Most common in the lower extremities

Other Information About Synovial Sarcoma

Etiology:

• Unknown

Epidemiology:

• Rare
• More common in males
• Typically presents before age 40

Presentation:

• Typically asymptomatic
• Palpable mass
• Pain of the affected area

Prognosis:

• The 5-year relative survival rate for synovial sarcoma is about 30-60%