psoriatic arthritis
Quick Summary
Psoriatic arthritis is a form of inflammatory joint disease associated with psoriasis, a skin condition. While it shares some characteristics with rheumatoid arthritis, it differs in its typical presentation and pathology. Psoriatic arthritis often affects the outer joints of the fingers and toes and can lead to more significant bone destruction than rheumatoid arthritis. It is considered a type of spondyloarthropathy, meaning it primarily affects the spine and sacroiliac joints, though peripheral joints can also be involved. The exact cause is not fully understood, but it involves an immune system response.12
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