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What is rheumatoid arthritis?
It is a chronic systemic inflammatory disease that predominantly affects the synovial tissues and joints
Differential diagnosis for rheumatoid arthritis?
Psoriatic arthritis, Reiter's syndrome, SLE
Syndromes associated with rheumatoid arthritis?
Felty syndrome (rheumatoid arthritis, splenomegaly and neutropenia) and Caplan syndrome (rheumatoid arthritis and pneumoconiosis)
X-ray (both hands) findings:
loss of intercarpal, carpometacarpal and distal radio-ulnar joint spaces
ulnar deviation of MCP joints
extension deformity of DIP joints (Boutonierre deformity) and hitchhiker thumb deformity