Rheumatoid arthritis - knee

Case contributed by Roberto Schubert
Diagnosis almost certain

Presentation

Patient with known RA presenting with knee pain and a mass in the back of the knee.

Patient Data

Age: 55 years
Gender: Female

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

mri

Large Baker cyst with heterogeneous soft-tissue inclusions.

Case Discussion

MRI showed a large Baker cyst with synovial pannus as well as thickening and hyperthrophy of the synovial membranes of the knee.

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