All are features of Rheumatoid - arthritis, EXCEPT-
Radiological features of RA

Following features are seen on X-ray :-


Reduced joint space
Erosion of articular margins
Subchondral cysts
Juxta-articular rarefaction
Soft tissue shadow at the level of the joint because of joint effusion or synovial hypertrophy
Deformities of the hand and fingers
Periarticular osteopenia (osteoporosis)
Osteosclerosis of joint
Soft tissue swelling
Narrowing of joint space
Periarticular osteoporosis