Fast Five Quiz: Can You Identify Psoriatic Arthritis and Initiate the Best Treatment Practices?

Herbert S Diamond, MD; Anwar Al Hammadi, MD

Disclosures

July 14, 2021

PsA is accompanied by both peripheral and axial manifestations of musculoskeletal disease. Peripheral joint diseases include polyarticular, oligoarticular, distal, and arthritis mutilans subtypes. Asymmetrical oligoarticular arthritis with or without spine involvement accounts for nearly 70% of all cases of PsA.

Arthritis mutilans is a rare form of PsA, found in only 1%-5% of patients. Spondylitis without peripheral joint involvement occurs in approximately 5% of patients with PsA and has a male predominance. Although its incidence is probably underestimated, SAPHO syndrome (synovitis, acne, pustulosis, hyperostosis, osteitis) is a rare condition.

Learn more about the various forms of PsA.

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