Presentation
Fell and hurt ankle. Ongoing pain and swelling especially anteriorly.
Patient Data
Age: 55 years
Gender: Female
From the case:
Ankle joint hematoma masquerading as PVNS
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Ankle joint effusion with reactive synovitis (contrast enhancement in synovium) together with a mass in the anterior recess of the joint - heterogeneous signal intensity and subtle susceptibility artefact suggesting blood product. Interpreted as PVNS but has no enhancement and central T1 hyperintensity indictaing methaemaglobin.
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Follow-up scan without surgery shows almost complete resolution with a small residual joint effusion and minor residual "mass".