<prompt> Which one of the following is a recognized X-ray feature of rheumatoid arthritis?Juxta-articular osteosclerosisSacroilitisBone erosionsPeri-articular calcification  <response>: Radiological findings of RA:- Periarticular soft tissue swelling, periarticular osteopenia, Marginal erosion, subchondral cysts, widening of joint space early, narrowing of joint space later, ankylosis, subluxation or dislocation, and arthritis mutilans late in the disease. 