inflammatory exudate over the synovial lining results in progressive erosion of articular cartilage & contiguous bone
Pannus formation
cutaneous hypersensitivity to superficial trauma –> localized recurrence of rash
Koebner phenomenon
SEA syndrome
seronegative (-)RF, Enthesitis
Arthritis
Juvenile Ankylosing Spondylitis
Most common pattern of psoriatic arthritis
oligoarthritis, affects large & small joints in an asymmetric pattern
- Preceded by enteric or UTI
Reactive Arthritis
hallmark of SLE
autoantibody production against many self antigens (leading to inflammatory damage of target organs including joints, kidneys, blood forming cells & CNS)