Fast Five Quiz: Polyarticular Psoriatic Arthritis

Herbert S. Diamond, MD


February 01, 2022

Figure 1. Polyarticular Psoriatic arthritis.

Five patterns of joint involvement have been recognized in psoriatic arthritis: asymmetrical oligoarticular arthritis, symmetrical polyarthritis, distal interphalangeal arthropathy, arthritis mutilans, and spondylitis with or without sacroiliitis. Polyarticular arthritis may be asymmetric but more often is symmetric and often presents similarly to rheumatoid arthritis.

Polyarticular arthritis may involve the small joints of the hands and feet as well as larger, weight-bearing joints, including the ankles.

Arthritis mutilans is recognized as the most severe disease subtype and can lead to permanent disfigurement.

Learn more about the subtypes of psoriatic arthritis.


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