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Back| Stage | X-ray Findings |
|---|---|
| Stage I | Soft tissue swelling around the joint, osteoporosis at the joint ends |
| Stage II | Narrowing of joint space |
| Stage III | Appearance of erosions on joint surfaces |
| Stage IV | Joint subluxation and fibrous or bony ankylosis following joint destruction |
Explanation
Ordinary X-ray changes are related to disease progression;
Imaging examinations for RA include X-ray, CT, MRI, etc. As the disease progresses, osteoporosis, cystic changes, erosive changes, and joint stiffness and fusion appear successively.
