

A 63-year-old woman with psoriatic arthritis presented with a 9-month history of pain in the left knee. A nontender, palpable mass was present in the left popliteal fossa, which had a “speech bubble” shape on ultrasonography.
Rheumatology
|11th Mar, 2026
|The New England Journal of Medicine
Rheumatology
|11th Mar, 2026
|The Lancet
Rheumatology
|11th Mar, 2026
|The Lancet
Rheumatology
|11th Mar, 2026
|The Lancet
Rheumatology
|11th Mar, 2026
|The Lancet
Rheumatology
|11th Mar, 2026
|The Lancet
Rheumatology
|11th Mar, 2026
|The Lancet