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Published on: October 13, 2023
Floating Tophi in a Baker Cyst Secondary to Gout: Ultrasound Features and Differential Diagnosis
William Derry1, Kambiz Motamedi, Ami Ben-Artzi
1*Musculoskeletal Imaging Section, Department of Radiology, and †Division of Rheumatology, Department of Medicine, University of California, Los Angeles, Los Angeles, CA.
Abstract:
We report the case of a 36-year-old man with a recent diagnosis of gout, who presents with a fullness behind his right knee that fluctuates in size with time. An ultrasound revealed a Baker cyst that contained both large and punctate internal hyperechoic foci. Cyst aspiration revealed negatively birefringent crystals, which were consistent with gout.
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