RT Journal Article SR Electronic T1 Imaging in Psoriasis and Psoriatic Arthritis: GRAPPA 2008 JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP 448 OP 452 DO 10.3899/jrheum.090955 VO 37 IS 2 A1 LAURA C. COATES A1 DENNIS M. McGONAGLE A1 RICHARD HODGSON A1 PAOLO GISONDI A1 ARTHUR F. KAVANAUGH A1 ABRAR A. QURESHI A1 OLIVER FITZGERALD A1 PHILIP J. MEASE A1 AMIT GARG A1 CHERYL F. ROSEN A1 DAVID RIDLEY A1 DAFNA D. GLADMAN A1 GERALD G. KRUEGER A1 CHRISTOPHER T. RITCHLIN A1 PHILIP S. HELLIWELL YR 2010 UL http://www.jrheum.org/content/37/2/448.abstract AB At the 2008 meeting of GRAPPA (Group for Research and Assessment of Psoriasis and Psoriatic Arthritis), the primary focus of the imaging session was the enthesis. Presentations from Dennis McGonagle (Leeds, UK), Richard Hodgson (Leeds, UK), and Paolo Gisondi (Verona, Italy) elaborated on this theme and prepared the meeting attendees for group discussions of further work in this area. Imaging, notably magnetic resonance imaging (MRI) and ultrasonography, provides evidence of pathological change at the enthesis in psoriatic arthritis (PsA). Further, imaging abnormalities are found at sites that are asymptomatic in both PsA and psoriasis. The role of newer imaging modalities, such as ultra-short echo time (UTE) MRI, is promising but remains to be fully elucidated. The implication of these findings in relation to subclinical and predisease status is intriguing and requires further study in longitudinal studies. Further work is also required to examine the proposed common biomechanical basis between joint and skin, the mechanism of the resulting inflammation, and how these mechanisms differ from those seen in rheumatoid arthritis.