What is the severe destructive form of psoriatic arthritis called?

• A. Psoriatic Mutilans
• B. Felty Syndrome
• C. Gout
• D. Rheumatoid Arthritis

Answer: (A)

The severe destructive form of psoriatic arthritis is called psoriatic mutilans, the most aggressive psA subtype. It features extreme bone and soft tissue destruction that can cause fingers to telescope or shorten dramatically, giving a highly deforming, disfiguring appearance. This stands in contrast to other conditions listed: Felty syndrome is a RA-related complication with splenomegaly and neutropenia, gout is a crystal-induced joint disease, and rheumatoid arthritis is a separate inflammatory arthritis—none of which describe the dramatic mutilation seen in psoriatic mutilans. Recognizing this subtype matters because it signals a need for aggressive therapy to try to slow progression and preserve function.