Overview
Definition
Inflammatory arthritis associated with psoriasis.
Epidemiology
Occurs in up to 30% of patients with psoriasis.
Etiology & Risk Factors
- Autoimmune
- Genetic (HLA-B27)
Clinical Symptoms
- Asymmetric oligoarthritis
- Dactylitis (sausage digits)
- Nail pitting
- Psoriatic plaques
Clinical Approach
Diagnosis
- Clinical diagnosis
- X-ray ('pencil-in-cup' deformity)
Management
- NSAIDs
- Methotrexate
- Biologics (TNF, IL-17, IL-23 inhibitors)
Complications
- Joint destruction
- Metabolic syndrome