How to Identify and Monitor Axial and Peripheral Psoriatic Arthritis by Magnetic Resonance Imaging.

Psoriatic arthritis (PsA) is characterized by a spectrum of clinical manifestations. Magnetic resonance imaging (MRI) is a crucial tool in elucidating inflammatory and structural lesions associated with both peripheral and axial forms of the disease. The implementation of standardized definitions and scoring systems for active and structural MRI lesions facilitates a rigorous evaluation of axial and peripheral joint involvement and enthesitis in patients with PsA. Further, the emerging potential of whole-body MRI techniques shows promise in differentiating treatment effects. The annual MRI workshop, held at the Group for Research and Assessment of Psoriasis and Psoriatic Arthritis (GRAPPA) 2024 meeting in Seattle, Washington, USA, aimed to underscore the significant role of MRI in the comprehensive assessment of PsA manifestations. Through the presentation of interactive case studies, the workshop illustrated the practical applications of MRI in the clinical management of individuals with PsA, enhancing understanding of its diagnostic capabilities and highlighting its contributions to treatment strategies.