This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Orthopaedics
All are features of Rheumatoid - arthritis, EXCEPT- 
Select and explain. 
A. Osteosclerosis of joint, B. Soft tissue swelling, C. Narrowing of joint space, D. Periarticular osteoporosis
A: Osteosclerosis of joint
Answer: A: Osteosclerosis of joint 
Explanation: 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)