The Role of Ultrasound in Research and Clinical Practice in Psoriatic Arthritis: Highlights From the GRAPPA Ultrasound Workshop.

Ultrasound (US) is a valuable imaging modality that can accurately identify relevant features of psoriatic arthritis (PsA), such as synovitis, tenosynovitis, and enthesitis. The Group for Research and Assessment of Psoriasis and Psoriatic Arthritis (GRAPPA) Ultrasound Committee ran a workshop during the annual GRAPPA meeting that was held in July 2020. The group presented the following 3 topics: (1) the transition from psoriasis to PsA and the role of US; (2) the effect of biomechanical forces on the entheses in health and disease, and insight for PsA pathogenesis; and (3) differentiation of enthesitis from pain sensitization: use and limitations of clinical and sonographic evaluation of enthesitis. This article summarizes the key messages from this workshop.

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Authors: Lihi Eder, Sibel Z Aydin, Gurjit S Kaeley