musculoskeletal and connective tissue disorders
Psoriatic Arthritis
Key Points
Psoriatic arthritis is chronic inflammatory spondyloarthropathy that occurs in patients with psoriasis; however, psoriasis may be mild or overlooked or may have not yet developed. Arthritis is commonly asymmetric, involves large and small joints (including axial joints), and typically affects the finger and toe distal interphalangeal (DIP) joints more than others. Diagnose based on clinical findings. Treat with disease-modifying antirheumatic drugs (DMARDs) and biologic agents. 