Psoriatic arthritis (PsA) is one of the most exciting joint diseases. The clinical appearance of PsA is very diverse, involving the spine, sacroiliac joints, peripheral joints and entheses. Consequently, also imaging findings vary and in many cases only the combined interpretation of X-rays, ultrasound, CT and MRI will lead to the correct diagnosis. Research teams have tried to use MRI for further differentiation from rheumatoid arthritis or hand osteoarthritis, e.g. with the help of dynamic contrast-enhanced MRI, pattern recognition or single-joint high-resolution MRI. Those studies so far did not reveal distinct features for PsA to differentiate it from other inflammatory arthritides. The lecture will highlight typical findings in PsA on MRI from a clinical radiology perspective and will correlate these with X-ray findings and differential diagnoses as appropriate. The participants will learn how to use MRI in distinct situation in the diagnostic workup of patients with suspected PsA. Furthermore, new developments in quantifying disease activity will be presented.
Disclosure of Interest K. G. Hermann Paid instructor for: Pfizer, MSD, AbbVie
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