Fact-sheet: Psoriatic arthritis
Updated on 06/22/2020 at 10:03 AM
View all RADEOS cases associated with this fact-sheet
Definition
Rheumatologic involvement (spine, sacroiliac joint, and appendicular skeleton, particularly peripheral) associated with psoriasis.
Clinical features
Patient most often aged between 30 and 50 years.
Classic cutaneous psoriasis involvement (squamous lesions).
Nail dystrophy.
Asymmetric oligoarthritis of the lower limbs or monoarthritis.
Systemic polyarthritis.
Pelvispondylitis.
Enthesitis.
Dactylitis.
Cardiac and ocular involvement (uveitis, conjunctivitis)
OP3GO: onycho-pachydermo-periostitis of the great toe.
Radiography
Distal phalanx: acro-osteolysis, microlacunae, exuberant bone proliferation
Joint space narrowing, often asymmetric
Marginal erosions with hyperostosis
Ultrasound
Dactylitis
Tenosynovitis
Intra-articular effusion
Enthesitis
Power Doppler: hyperemia
MRI
T2FS: hyperintensity of the entheses, osteitis, effusions, synovitis
T1: bone marrow edema
Management
Medical treatment with:
- NSAIDs
- Corticosteroid injections
- Biologic therapies (Methotrexate, Sulfasalazine, Leflunomide)
Classification
CASPAR criteria
