RT Journal Article SR Electronic T1 Magnetic Resonance Imaging of Axial and Peripheral Disease in Psoriatic Arthritis: A Report From the 2020 GRAPPA Annual Meeting JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP jrheum.201676 DO 10.3899/jrheum.201676 A1 Maksymowych, Walter P. A1 Østergaard, Mikkel YR 2021 UL http://www.jrheum.org/content/early/2021/02/10/jrheum.201676.abstract AB Psoriatic arthritis (PsA) presents with diverse features of musculoskeletal inflammation that affect both axial and peripheral joints as well as entheses, tenosynovium, and bursae. Magnetic resonance imaging (MRI) is the imaging modality that is uniquely capable of identifying pathology in all these structures. The Group for Research and Assessment of Psoriasis and Psoriatic Arthritis (GRAPPA) Magnetic Resonance Imaging Working Group has increasingly explored diverse MRI methodologies for the purposes of quantifying inflammatory and structural abnormalities in clinical trials and research. The 2020 GRAPPA virtual workshop presented an opportunity to review progress in the field, summarize the status of MRI scoring systems developed for PsA, and review representative patient cases.