Synovial sarcoma

Case contributed by Paresh K Desai
Diagnosis certain

Presentation

Long standing swelling in the popliteal fossa. Soft tissue ultrasound was performed which revealed a predominantly cystic mass with a solid component in its superior aspect.

Patient Data

Age: 13 years
Gender: Male

Note: This case has been tagged as "legacy" as it no longer meets image preparation and/or other case publication guidelines.

mri

MRI was performed depicting a mass with associated cystic component. The lesion is in the popliteal fossa immediately posterior to the femoral shaft.

Case Discussion

The patient went on to have surgery. 

Final diagnosis: Synovial sarcoma.

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