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
Not true about rheumatoid arthritis 
Select and explain. 
A. Peri-articular osteopenia, B. Periosteal reaction seen, C. Narrowing of joint space, D. DIP is usually spared
B: Periosteal reaction seen
Answer: B: Periosteal reaction seen 
Explanation: None