Radiographic findings in rheumatoid arthritis

1. What general radiographic findings are seen in RA?
2. What C-spine findings are seen in RA?
3. What are early radiographic findings of RA?
4. What are late radiographic findings of RA?

Answers:
1. Marginal bone erosions, juxta-articular osteopenia.
2. Atlantoaxial subluxation.
3. Soft tissue swelling, increased joint space.
4. Uniform joint space narrowing, axial migration of hip, malalignment and fusion of joints.