Psoriasis MRI

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Syed Hassan A. Kazmi BSc, MD [2]

Overview

There are no MRI findings associated with cutaneous psoriasis but MRI may be used in psoriatic arthritis to catch the disease in its early phase.

MRI

MRI in psoriatic arthritis may show the following findings:

• Synovitis (usually secondary to extrasynovial involvement - helps to differentiate PsA from rheumatoid arthritis)
• Gadolinium contrast use can more reliably differentiate PsA from rheumatoid arthritis by relative enhancement and rate of enhancement on MRI
• Enthesitis
• Osteitis
• Peri-articular edema