Snowstorm Appearance of Synovial Fluid on Musculoskeletal Ultrasound

摘要

Gout is a common type of inflammatory arthritis characterized by the deposition of monosodium urate monohydrate (MSU) in the synovial fluid and other tissues of the body. A diagnosis of gout is based on a pattern of the bursa and joint involvement, characteristics of symptomatic episodes, typical time course, clinical evidence of tophus, high levels of serum urate, positive evidence from synovial fluid analysis, and evidence of urate deposition or gout-related joint damage based on imaging.111 Among the possible imaging modalities, musculoskeletal ultrasound is a convenient, simple, efficient, affordable, noninvasive, and radiation-free method.