Psoriatic arthritis (PsA) is a chronic, progressive inflammatory condition of the skin and musculoskeletal system that affects 0.06–0.25% of the US population [1,2]. Manifestations of PsA include peripheral arthritis, enthesitis, dactylitis, axial involvement, and psoriatic skin and nail disease, which may occur alone or in combination [3]. PsA symptoms may range from mild to very severe, and may occur alone or in combination with each other, complicating disease management [4].
