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Baker cyst

Case contributed by Maulik S Patel
Diagnosis almost certain

Presentation

Painful knee for 10 days. No trauma

Patient Data

Age: 50 years
Gender: Female
x-ray

Small joint effusion. No fracture. Posterior soft tissue swelling. 

ultrasound

Popliteal cyst present. Minimal fluid is seen at inferior end of the cyst in subcutaneous plane suggesting possible early rupture / leak.

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